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    Home ยป Recipes ยป Recipes by Ingredient ยป Pasta

    Quick Leftover Spaghetti Recipe

    Last modified: June 18, 2024 ยท By Adina ยท 4 Comments

    Jump to Recipe

    This leftover spaghetti recipe is a quick and delicious way of dealing with leftover pasta. Fry it in the pan with a few more ingredients, a fool-proof dinner idea, perfect for the family.

    a plate of leftover spaghetti cooked with bacon, tomatoes and sprinkled with parsley. a water glass behind it.

    What to do with leftover spaghetti? This leftover spaghetti recipe! There are many ways to use them, but one of the simplest and tastiest ones is to fry them with bacon, onions, and cheese.

    Today's recipe and Fried Spaghetti are two of our favorite leftover recipes, and I really do cook them more often than you might think. Why not? I hate throwing away food, and I am always looking for good ideas for using up anything.

    Try another simple pasta recipe with cherry tomatoes, this comforting Chorizo Pasta Bake. Try Spaghetti with Ground Beef and Spaghetti Pizza, too.

    Ingredients: 6 + spices and oil

    Working time: 10 minutes

    Cooking time: 10 minutes

    Jump to:
    • Recipe ingredients
    • Variations
    • How to fry spaghetti leftovers?
    • Recipe FAQs
    • What to serve them with?
    • ๐Ÿ“– Recipe
    • ๐Ÿ’ฌ Comments

    Recipe ingredients

    labeled ingredients for making spaghetti with cherry tomatoes, bacon, onion and cheese.

    Leftover spaghetti: Cooked pasta keeps well in the fridge in an airtight container for up to 4 days, so you will have plenty of time to cook it. You will not even have to complain about eating noodles two days in a row.

    • The recipe is scaled for about 1 lb (450 g) of cooked pasta, but you can scale it up and down to fit your requirements; it is very unlikely that you will ever have precisely 1 lb of cooked noodles.
    • The other ingredients should be enough for roughly anything between 12 and 20 oz (350-550 g) of leftover pasta.
    • If you donโ€™t have leftovers but you would still like to try this dish (itโ€™s worth it!), cook 9 oz (250 g) pasta, drain it well, and leave it to cool and dry slightly before frying.

    Cheese: I usually have Cheddar or Gouda; they are tasty, good-melting cheeses. However, you can choose whatever sort of good-melting cheese you like. Feta is excellent as well; it has a completely different flavor.

    • I donโ€™t recommend using already-grated cheese; the additives it contains will hinder it from melting nicely.

    See the recipe card for complete information on ingredients and quantities.

    Variations

    Swap the bacon for canned tuna (drained and flaked), cooked chicken, ham, salami, leftover meatballs, or other deli/meat leftovers. Add them to the pan after the onions are soft, along with the tomatoes or pasta, just long enough to heat through.

    Vegetarian version: Skip the bacon and use vegetarian-friendly cheese. Cook all the veggies with the onions until soft. Great vegetarian versions include eggplant or zucchini, but bell peppers, mushrooms, broccoli, carrots, or other favorites work well too.

    How to fry spaghetti leftovers?

    Preparations: Chop the onion and bacon. Halve the cooked spaghetti and the cherry tomatoes, keeping them in separate bowls. If the spaghetti is not already cooked, cook it according to the packet's instructions and drain it well.

    cooking onion in a skillet and stirring with a wooden spoon.

    Step #1: Cook onions in the foaming butter and oil for a few minutes.

    stirring chopped onions and bacon in a pan.

    Step #2: Add bacon and cook on medium-low heat for about 3 minutes, often stirring.

    stirring cooked tomatoes and onions in a large cast iron skillet.

    Step #3: Add the tomatoes and oregano to the pan. Cook for about 2 minutes, stirring occasionally.

    stirring tangled spaghetti with a wooden spoon in a skillet.

    Step #4: Add noodles and stir well for about 4-5 minutes until they are heated through.

    adding grated cheese to spaghetti in a cast iron skillet.

    Step #5: Sprinkle the grated cheese on top, add some salt and pepper.

    stirring spaghetti with other ingredients with a wooden spoon.

    Step #6: Stir well until the cheese melts; it will take another 2-3 minutes.

    Recipe FAQs

    How long does leftover spaghetti stay fresh in the fridge?

    Leftover spaghetti can stay good for 3-5 days if stored in an airtight container. Check for spoilage and freshness by smelling it before consuming.

    What to do with new leftover spaghetti?

    Keep them refrigerated in an airtight container and reheat them again before serving. Do that in the microwave or on the stovetop. If reheating on the stovetop, add a little more oil or butter and maybe a splash of water while frying again.

    tangled spaghetti with tomato and bacon bits in a cast iron skillet.

    What to serve them with?

    Serve with a salad with a vinaigrette or yogurt dressing. Or with a vegetable salad, steamed, boiled, or roasted vegetables.

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    ๐Ÿ“– Recipe

    white bowl full of leftover spaghetti cooked with bacon and tomatoes.

    Quick Leftover Spaghetti Recipe

    This is the most delicious way to use leftover spaghetti. It takes only 20 minutes to prep and cook, and you only need a few ingredients!
    5 from 3 votes
    Print Pin Rate
    Course: Pasta Recipes
    Cuisine: American, Italian
    Prep Time: 10 minutes minutes
    Cook Time: 10 minutes minutes
    Servings: 4 servings
    Calories: 558kcal
    Author: Adina

    Equipment

    • Large skillet (cast-iron or nonstick pan)
    Prevent your screen from going dark

    Ingredients 
     

    • 1 lb spaghetti cooked, Notes 1, 2
    • 1 onion medium
    • 1 ยฝ tablespoon olive oil
    • 1 tablespoon butter salted or unsalted
    • 3 oz bacon lean, Notes 3,4
    • 8 oz cherry tomatoes Note 5
    • 1 teaspoon oregano Note 6
    • 1 cup cheese grated, Note 7
    • ยผ teaspoon fine sea salt or Kosher, more to taste
    • โ…› teaspoon ground black pepper to taste

    Instructions

    • Chop the onion finely. Chop the bacon if necessary. Set aside.
      1 onion + 3 oz bacon
    • Heat a large cast-iron or nonstick skillet on high heat. Add oil and butter and let the butter foam gently.
      1 ยฝ tablespoon olive oil + 1 tablespoon butter
    • Add onions and bacon. Lower the heat to medium-low and cook for about 3 minutes, stirring regularly, until the onions are softer.
    • Halve the cherry tomatoes, add them to the pan together with the oregano. Cook for about 2 minutes, stirring occasionally.
      8 oz cherry tomatoes + 1 teaspoon oregano
    • Add the halved spaghetti and stir well for about 4-5 minutes until they are heated through.
      1 lb spaghetti
    • Add grated cheese, salt, and pepper and stir well for another 2-3 minutes until the cheese melts.
      1 cup cheese
    • Adjust the taste with salt and pepper and serve immediately.
      ยผ teaspoon fine sea salt + โ…› teaspoon ground black pepper

    Notes

    1. Pasta: You can use any type of cooked pasta you have.
    2. From scratch: If you donโ€™t have leftovers, cook about 9 oz (250 g) pasta, drain well, and let cool and dry slightly before frying.
    3. Bacon: Already cubed bacon (or pancetta), if available. Otherwise, chopped regular bacon.
    4. For a vegetarian dish, replace bacon with vegetable cubes like zucchini, eggplants, mushrooms, bell peppers, broccoli florets, carrots, etc. Cook the veggies together with the onions until soft. Add some garlic if desired.
    5. Tomatoes: Or chopped regular-sized tomatoes. But cherry tomatoes have more flavor.
    6. For a spicier dish, add some red chili flakes or cayenne pepper to taste.
    7. Cheddar or Gouda are my first choices, but any other type of good-melting cheese is fine. For example, try Swiss, Provolone, Colby, Monterey Jack, or a mixture of mozzarella and Parmesan. Or Feta.

    Nutrition

    Calories: 558kcal | Carbohydrates: 41g | Protein: 15g | Fat: 37g | Saturated Fat: 15g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 16g | Cholesterol: 51mg | Sodium: 370mg | Potassium: 254mg | Fiber: 3g | Sugar: 4g | Vitamin A: 580IU | Vitamin C: 15mg | Calcium: 240mg | Iron: 2mg
    Tried this recipe? Pin it today!Mention @thefastrecipe or tag #thefastrecipe!

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    Comments

      5 from 3 votes (2 ratings without comment)

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    1. Amy says

      October 23, 2024 at 5:05 pm

      5 stars
      This is very good-my family liked it better than regular spaghetti! I used a little chicken broth and about a tablespoon of arrowroot powder (you can use cornstarch) sprinkled on top and stirred in to make a slight creamy sauce then added grated oatmeal for my cheese. I also made it with leftover gluten free noodles. Worked just fine!

      Reply
      • Adina says

        October 28, 2024 at 6:19 am

        I am happy to hear it, Amy. Thank you for the feedback.

        Reply
    2. Kris says

      November 27, 2022 at 12:12 pm

      I was looking for a quick lunch using leftover spaghetti, and found this one. We live in France and so had lardons rather than bacon and being Sunday couldn't get any tomatoes. I substituted mixed peppers and some tomato puree, I also threw in some mushrooms. It was delicious and my husband and Grandson loved it. I only had a bit of parmesan or pregrated Emmental so just used the parmesan. (I am not fond of cheese) the boys loved it anyway. Thanks, I will certainly know what to do in future with leftover pasta. I am always looking for new ideas, after cooking for more than 60 years things can get a bit boring.

      Reply
      • Adina says

        November 28, 2022 at 6:07 am

        Hi Kris. Thank you so much for the feedback; I am so glad you found the recipe useful. Your substitutions sound great, and that's the best about a leftovers recipe; you can tweak it to fulfill your needs.

        Reply

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    Adina Beck the recipe writer, creator, and photographer behind The Fast Recipe Food Blog.

    Hi, I'm Adina! I am a foodie, creator, writer, and photographer, creating and photographing recipes for my blogs and clients.

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