Leftover Spaghetti Bake Recipe (2024)

Leftover Spaghetti Bake is an easy way to really transform leftover spaghetti into a different meal the second night. You can use spaghetti with meat sauce or with meatballs in this recipe too! The sky is the limit.

Comment below and tell me what you would add to this recipe to make it your own! Check the comments for other great suggestions.

Leftover Spaghetti Bake Recipe (1)

Do you ever find yourself with a container of leftover spaghetti in your fridge, unsure of what to do with it?

You’re not alone.

According to a study by the Natural Resources Defense Council, American households waste about one-third of the food they buy.

But with this delicious leftover spaghetti bake recipe, you can save money and reduce waste by turning your leftovers into a new meal.

In this article, we’ll explore the importance of using leftovers, provide tips on how to customize your casserole, and share the key to success for making the perfect leftover spaghetti casserole.

By the end, you’ll be ready to whip up this easy and budget-friendly recipe, and you’ll never let your leftovers go to waste again.

Leftover Spaghetti Bake Recipe (2)

This Baked Spaghetti recipe was born from the desire to have something besides leftover spaghetti the second night.

Spaghetti is a favorite around our house, and we eat it frequently.

But it makes a lot, and there’s always enough for another night’s dinner.

Sometimes I just want to do something different than warming up the leftover spaghetti in the microwave though.

So, this is how I throw the spaghetti together in a casserole dish to make it an entirely new meal.

This is a very popular recipe on our blog so I hope you enjoy it too!

Disclosure – I may get a small commission for purchases made through affiliate links in this post.

Leftover Spaghetti Bake Recipe (3)

❤️ Why You’ll Love This Leftover Spaghetti Bake Recipe

With a few simple steps, you can transform your leftover spaghetti into a mouthwatering casserole that’ll have your whole family coming back for seconds.

But why stop there?

There are plenty of reasons why you’ll love this leftover spaghetti bake recipe.

Firstly, it’s a budget-friendly option that helps you avoid food waste.

Instead of throwing away uneaten spaghetti, you can use it to create a whole new meal that’s just as delicious.

Plus, since you’re using ingredients that you likely already have on hand, it makes for an easy and convenient dinner option.

But what really sets this recipe apart is its versatility. Y

ou can customize the ingredients to suit your preferences or use whatever you have in your fridge.

From leftover veggies to different cheeses, you can mix and match to create a unique flavor profile every time you make it.

Leftover Spaghetti Bake Recipe (4)

🔑 Key to Success #1 – Choose Your Own Adventure By Adding Extras

There are endless possibilities when it comes to adding ingredients to this dish.

You could include some diced veggies like bell pepper or zucchini, or mix in some cooked ground beef or sausage.

Don’t be afraid to experiment with different cheeses or spices either.

The key is to use what you have on hand and make it work for you.

By taking the time to get creative with your leftovers, you’re not only saving money, but you’re also reducing waste and helping the environment.

Plus, you’ll never be bored with your meals again.

So next time you have leftover spaghetti, give this recipe a try and see how delicious leftovers can be.

This basic leftover spaghetti dish can be customized a zillion different ways but it all starts with your favorite spaghetti recipe.

My son, Noah, loves spaghetti and meatballs. He insists on the meatballs.

So my leftover spaghetti almost always has meatballs in it.

First, combine your spaghetti noodles and your sauce if not already done so.

You can add additional meat or additional vegetables to your spaghetti if you’d like.

You can add onions or peppers or carrots if you’d like but make sure they’re already cooked/soft before you add them since this is a quick-cooking pasta dish.

The amount of pasta you have is not super important either.

If you have at least 3-4 servings of pasta, I wouldn’t change the amount of the other ingredients listed in the recipe.

Leftover Spaghetti Bake Recipe (5)

🔑 Key to Success 2 – Bake Covered

After you add the Italian seasoning, eggs, butter, and Parmesan cheese, spread the pasta into your greased baking dish and cover the whole thing with aluminum foil. (Does anyone still call it tin foil?)

You’ll bake the pasta for about 30 minutes covered with foil.

Make sure the foil is fully covering the pasta so that it doesn’t dry out in the oven.

To make sure that your leftover spaghetti bake stays moist and delicious, it’s important to bake it covered.

This will help to retain the heat and moisture, preventing the dish from drying out in the oven.

So before you pop it in the oven, cover your baking dish with aluminum foil or a lid.

This simple step will make all the difference in the final result, ensuring that your leftover spaghetti bake is just as tasty as the day before.

If you reach 30 minutes and you feel like your pasta is not warm enough, pop it back into the oven covered for up to 15 minutes more.

Leftover Spaghetti Bake Recipe (6)

🔑 Key to Success #3 – Sprinkle on the Cheese

For the perfect finishing touch to your leftover spaghetti bake, don’t forget to add some cheese and let it brown in the oven.

This step is key to achieving that irresistible crispy texture on top of the dish.

The cheese also adds a savory flavor that perfectly complements the spaghetti and any other ingredients you’ve included.

Plus, this simple step is an easy way to elevate the overall presentation and make it look like a restaurant-worthy dish.

With these tips under your belt, you’ll be able to turn your leftovers into a delicious meal that you’ll be excited to eat all over again.

I like to top this Spaghetti Bake with freshly shredded cheddar cheese but you could also use mozzarella cheese for a more traditional Italian spaghetti dish.

However, I’m a big lover of cheddar cheese on spaghetti, so I hope you’ll give it a shot.

After you’ve sprinkled the cheese on top of the oven-warmed spaghetti bake, return it to the oven for another 10 minutes or so, uncovered, until the cheese is melted and gooey.

You may also use a broiler to melt the cheese on top of this dish if you have one.

Just keep an eye on it to make sure it doesn’t become too brown!

I would be remiss if I didn’t mention that you can make this dish with fresh pasta as well.

I’d suggest using a half-pound of cooked pasta noodles (does not have to be spaghetti!) and a jar of prepared sauce.

I prefer the Prego Traditional pasta sauce but you can use your favorite variety or even homemade spaghetti sauce.

Leftover Spaghetti Bake Recipe (7)

😋 Perfect Answer for What to Do With Leftover Spaghetti

Whether you’re feeding a large family or hosting a dinner party, this leftover spaghetti bake is sure to impress.

It’s comforting and flavorful and makes for a hearty meal that everyone will enjoy.

So why settle for boring leftovers when you can turn them into something truly special?

Give this leftover spaghetti bake recipe a try and watch as your family asks for seconds (and maybe even thirds)!

Leftover spaghetti bake is the ultimate solution to turn your leftovers into a delicious meal.

It’s important to save money by utilizing ingredients that would otherwise go to waste, and this recipe is a fantastic way to do just that.

With a few simple tips, you can customize this dish to your liking and make it your own adventure.

Bake it covered to retain the heat and moisture, and then finish it off by sprinkling on some cheese and browning it in the oven uncovered.

This recipe is sure to become a household favorite, and the best part is that it’s highly customizable!

So, don’t throw away your leftover spaghetti the next time you have some in your fridge.

Instead, use it to make this amazing recipe and make the most out of your leftovers.

As they say, waste not, want not!

📌 Get the Printable Recipe for Leftover Spaghetti Casserole

Save this Leftover Spaghetti Bake to your favorite Easy Meals Board!

Leftover Spaghetti Bake Recipe (8)
Leftover Spaghetti Bake Recipe (9)

Leftover Spaghetti Bake

Yield: 8 servings

Prep Time: 15 minutes

Cook Time: 40 minutes

Total Time: 55 minutes

Leftover Spaghetti Bake is an easy way to really transform leftover spaghetti into a different meal the second night. You can use spaghetti with meat sauce or with meatballs in this recipe too! The sky is the limit.

Ingredients

  • your favorite spaghetti recipe with sauce
  • 1 Tbsp Italian seasoning
  • 2 eggs, beaten
  • 2 Tbsp butter, melted
  • 1/2 cup grated Parmesan
  • 2 cups cheddar cheese, shredded

Instructions

  1. Preheat oven to 350 degrees F. Grease 9X13 inch baking dish.
  2. Combine prepared spaghetti with sauce, Italian seasoning, eggs, butter, and Parmesan. Spread into greased baking dish. Cover with foil and bake 30 minutes.
  3. Remove foil and add shredded cheddar. Cook uncovered 10 minutes until cheese is melted.
Nutrition Information:

Yield: 8Serving Size: 1 grams
Amount Per Serving:Calories: 417Total Fat: 16gSaturated Fat: 8gUnsaturated Fat: 0gCholesterol: 76mgSodium: 324mgCarbohydrates: 48gFiber: 2gSugar: 2gProtein: 19g

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Leftover Spaghetti Bake Recipe (2024)

FAQs

What to use leftover spaghetti sauce for? ›

7 Ways to Use Up Leftover Pasta Sauce
  1. Use it in a vegetable casserole: ...
  2. Make a potato gratin: ...
  3. Use the sauce as a dip: ...
  4. Make a soup: ...
  5. Serve over polenta: ...
  6. Use as a bread topper or pizza sauce: ...
  7. Add it to other pasta dishes:
Mar 22, 2022

How do you eat leftover spaghetti? ›

Leftover spaghetti noodles can be reheated on the stove top with a bit of olive oil. Many different savory sauces can breathe life into them including alfredo sauce, marinara sauce, chipotle sauce, teriyaki sauce or garlic parmesan sauce.

How long is leftover baked spaghetti good for? ›

While dried pasta has a long shelf life in the pantry, cooked and fresh homemade pasta should be eaten somewhat quickly. Most cooked pasta only lasts in the fridge for between 3–5 days before it starts to show signs of expiration.

Can you eat 5 day old pasta? ›

While experts say that leftover pasta is good for up to 5 days, that number is contingent on how well you store it. If you don't use an airtight container or bag, or you don't close it correctly, the pasta will dry out and grow mold faster.

What can I eat with spaghetti sauce instead of pasta? ›

2: Make Eggplant or Zucchini Parmesan

Roast or fry some sliced eggplant, zucchini, or other vegetables. Layer slices in a dish with cheese (I suppose you could use cottage cheese like some people use in lasagna, if you wanted) and spaghetti sauce. Bake until bubbly, and you've got eggplant/zucchini Parmesan!

What can I do with an open jar of spaghetti sauce? ›

Once opened, jarred pasta can be frozen for longer storage. "You can freeze any unused sauce in an airtight container. Use it within six months for the best quality experience," says Birmingham. Homemade pasta sauce can also be frozen as long as it doesn't contain cream or cheese.

What should be done with leftover spaghetti sauce at the end of a shift? ›

Spread a layer of leftover spaghetti sauce on a slice of sprouted whole grain bread, layer on your favorite cheese, tomatoes, spinach, and mushrooms. Top things off with another slice of bread and toast in a skillet until the bread is brown and the cheese begins to melt.

Why is leftover spaghetti so good? ›

A report from BBC Science Focus says that when your bolognese, stew or curry is sitting on the shelf in your fridge, it's getting more flavoursome by the minute even though it's no longer on the stove, because the ingredients are still marinating and breaking down like they would in a super slow cook.

How do you moisten leftover spaghetti? ›

Place a single-serving of the pasta in a round or oval microwave-safe dish and drizzle a little extra sauce or water on top to keep the pasta moist and separated while it cooks. Then, cover the dish and microwave the pasta at medium heat for 1 to 1 ½ minutes.

Can you eat 7 day old spaghetti? ›

If the spaghetti has been stored on its own, it can be consumed at the 5-day mark even if the texture is slightly off. Cooked pasta lasts longer when not stored with sauce. If it is mixed with sauce, I recommend throwing it away after 5 days.

Is it OK to eat cold leftover spaghetti? ›

However, because pasta is a simple carbohydrate, many people limit it in their diet. It turns out that pasta can become a healthier food by chilling and eating it as leftovers. Changing the temperature is an easy way to convert simple starches like rice and pasta into foods that are higher in fiber.

Can you reheat baked spaghetti? ›

Spread your leftovers out evenly on a baking tray and bake at 350 for about 15 to 20 minutes, flipping once about halfway through. This will give you evenly heated pasta and some nice crispy bites of toasted deliciousness. To take this up a notch, add a little cheese on top.

Can I eat week old spaghetti and meatballs? ›

Leftovers can be kept for 3 to 4 days in the refrigerator. After that, the risk of food poisoning goes up. If you don't think you'll be able to eat leftovers within four days, freeze them right away. Frozen leftovers will stay safe for a long time.

Can you eat 10 day old spaghetti? ›

As you can see, no pasta, once cooked, is going to last longer than 5 days. In fact, if it's been in the fridge that long, it's probably best to get rid of it. Pasta lasts longer if it's been cooked in a sauce, such as leftover spaghetti bolognese or in lasagna, as this helps to preserve the ingredients.

Can I eat pasta thats been in the fridge for 2 weeks? ›

According to the FDA Food Code, all perishable foods that are opened or prepared should be thrown out after 7 days, maximum. No leftovers should survive in your fridge for longer than that. Some foods should be even be thrown away before the 7 day mark.

What to do with marinara sauce besides pasta? ›

Five Brilliant Ways to Make the Most of Marinara Sauce
  1. Baked Feta-Marinara Dip. For this recipe, you'll need 1½ cups of marinara sauce. ...
  2. Spiced Shrimp with Garam Masala. Tomatoes and garlic are the foundation for many dishes around the globe. ...
  3. Quick Spicy Vegetarian Chili. ...
  4. Chicken-and-Polenta Puttanesca Melts.
Apr 12, 2021

How long is leftover jarred spaghetti sauce good for? ›

Frequently Asked Questions. How long do other jarred sauces stay fresh in the refrigerator? While pasta sauce stays fresh for about five to six days after opening, sauces that contain dairy, such as Alfredo, are best used within three or four days.

Can I freeze leftover spaghetti sauce? ›

The answer is, “Yes! And you should!” Whether you make a batch of homemade spaghetti sauce or have leftover sauce in a jar from the store, freezing spaghetti sauce is a great way to avoid food waste, save money, and have a yummy pasta sauce ready and waiting for your next craving.

Can I reuse leftover sauce? ›

Sometimes they can be reused as is or with the addition of fresh herbs or an acidic element such as chopped cornichons. Sauces or gravies can be used to enrich other sauces as well, so long as the old dish and the new are not dissonant.

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