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    Home » Recipes » Mac and Cheese

    White Cheddar Arugula Pesto Mac and Cheese

    Published: Aug 23, 2022 · Modified: Feb 28, 2023 by Jessie · This post may contain affiliate links; if you buy something we'll earn a commission at no cost to you.

    Jump to Recipe

    This easy macaroni and cheese recipe uses creamy white cheddar cheese and gets a burst of color from homemade arugula pesto!

    Mac and cheese in a large silver pot with a black spoon. this recipe

    We're adding a pop of color to an old favorite today with this creamy white cheddar and arugula pesto mac and cheese! This recipe is ready in less than an hour on the stovetop: It's perfect straight out of the pan or baked with a layer of buttery bread crumbs on top.

    Mac and cheese ingredients, organized into individual bowls on a white table.

    A note about the pesto

    We're using our favorite arugula pesto in this macaroni and cheese sauce: it gives our sauce a sharp, peppery bite that pairs perfectly with the creamy white cheddar.

    If you're not an arugula fan (or if you don't have any on hand!) this recipe is also great with store bought basil pesto, cilantro pesto - really any pesto you have!

    If you're making homemade pesto, use a high quality olive oil here: You'll taste it a little bit in the sauce, so make sure you like the flavor. (We love EXAU olive oils!)

    Arugula, walnuts, and parmesan cheese being blended into pesto by a food processor.

    How to make arugula pesto

    You can find a full recipe with instructions and notes in our Arugula Pesto recipe post, but in a nutshell:

    • Add a few big handfuls of fresh arugula to a food processor with two cloves of garlic, a pinch of salt, a splash of lemon juice, a handful of walnuts, and a handful of parmesan cheese. (Pro tip: If you're in a hurry, you can leave out the walnuts and the cheese. They add depth, but the pesto still works fine without them!)
    • Pulse the food processor a few times to break everything up a bit. Then, with the food processor running, stream in olive oil a few tablespoons at a time until you have a smooth pesto sauce.
    Stirring white cheddar sauce together in a large silver saucepan.

    A quick mac and cheese primer

    There are two main styles of macaroni and cheese: The French-leaning version builds a creamy sauce using a basic stovetop béchamel sauce (a flour-and-butter base - called a roux - with lots of milk). Southern mac and cheese is typically baked and sometimes features eggs or evaporated milk in addition to a blend of cheeses and seasonings.

    The "right" way to make mac and cheese is different for everyone. Our mac and cheese recipes have plenty of riffs and mix-ins, and they lean towards the French style: excellent right off the stovetop or baked with breadcrumbs or extra cheese on top.

    Black spoon stirring shell pasta into arugula white cheddar cheese sauce.

    A few FAQs

    Does this recipe reheat well?

    Yes! Because we're using a béchamel-style cheese sauce (made with a roux), this pesto mac and cheese keeps well without separating. Store leftovers in an airtight container in the fridge for up to 5 days. Reheat on the stovetop in a saucepan or large skillet over medium-low heat, and add a splash of milk or cream to help the sauce stay creamy as it warms. You can also freeze this mac and cheese in an airtight container for 1-2 months without losing flavor.

    What should I do if my cheese sauce separates?

    If you use pre-shredded cheese (these often contain preservatives that prevent them from melting smoothly) or an especially oily pesto, your cheese sauce may separate a bit as it cooks. If this happens, don't worry: Grab an immersion blender and zap the sauce a few times to bring it back together.

    Can I bake this mac and cheese?

    Yes! If you'd like to bake this pasta, cook the noodles until they're 2-3 minutes less than al dente, make the sauce as directed, then transfer mac and cheese to a casserole dish and top with breadcrumbs or extra cheese and bake. For specific notes on how to bake mac and cheese, see our Mac and Cheese 101 guide.

    Mac and cheese in a shallow white bowl next to a yellow cup.
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    📖 Recipe

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    Arugula mac and cheese in a large silver pot with a black spoon.

    White Cheddar Arugula Pesto Mac and Cheese

    ★★★★★ 5 from 1 review
    • Author: Jessie
    • Prep Time: 8 minutes
    • Cook Time: 22 minutes
    • Total Time: 30 minutes
    • Yield: Serves 4-6 1x
    • Category: Pasta
    • Cuisine: American
    • Diet: Vegetarian
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    Description

    This easy mac and cheese gets a pop of flavor and color from fresh arugula pesto!


    Ingredients

    Scale
    • ¾ pound pasta (we used large shell pasta)
    • 3 Tablespoons butter
    • 3 Tablespoons flour
    • 1 ½ cups milk
    • ⅓ cup arugula pesto (or basil pesto)
    • 2 cups shredded white cheddar cheese
    • salt and pepper to taste

    Instructions

    1. Cook pasta in very salty water until al dente. Drain and set aside.
    2. In a large saucepan, melt butter over medium-high heat. Whisk flour into the butter to form a roux and cook, whisking frequently, for 30-60 seconds or until fragrant.
    3. Whisk milk into the roux a little at a time, working out the lumps as you go so you have a smooth sauce. Cook over medium heat, whisking occasionally, for 6-8 minutes until the sauce has thickened and come to a low simmer.
    4. Stir arugula pesto into the sauce and cook another 1-2 minutes to thicken.
    5. Turn off the heat and add shredded white cheddar cheese to the sauce. Stir for a minute or so, until cheese is fully melted and sauce is smooth.
    6. Add cooked pasta to sauce and stir to combine. Give it a taste, then add salt and pepper as necessary.

    Notes

    How to make arugula pesto. For full instructions and notes, see our Arugula Pesto recipe, but in a nutshell: Add 4 cups fresh arugula, ½ cup walnuts, ½ cup parmesan cheese, 2 cloves garlic, and 2 Tablespoons lemon juice to a food processor with a generous pinch of kosher salt. Pulse a few times to combine, then stream in ½ cup good olive oil a few Tablespoons at a time while the food processor runs until you have a smooth pesto (you may not need all the olive oil).

    Shred your own cheese for best results. Store-bought shredded cheese is often coated with preservatives that prevent the cheese from melting smoothly. Buy a block of white cheddar and shred it yourself for best results! If your cheese sauce does separate, zap it a few times with an immersion blender to smooth it back out.

    Additions and Substitutions. Use basil pesto or cilantro pesto in place of arugula pesto if you like. Swap some or all of the white cheddar cheese for goat cheese, havarti, or fontina. Use our Magic Cauliflower Cream in place of some or all of the milk (if you replace all of the milk with cauli cream à la our cauliflower mac and cheese, you can also omit the flour and butter). Swap up to ½ cup of the milk for white wine or chicken stock.

    Nutrition

    • Serving Size:
    • Calories: 759
    • Sugar: 7.6 g
    • Sodium: 1206.6 mg
    • Fat: 37.5 g
    • Carbohydrates: 75.5 g
    • Protein: 28.8 g
    • Cholesterol: 80.7 mg

    Keywords: pasta, macaroni and cheese, side dish

    Tag @lifeasastrawberry on Instagram to show us what you're cooking! Nutrition information is calculated per serving; it is approximate and will vary based on many factors.

    More Easy, Cozy Mac and Cheese Recipes

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    I'm Jessie, and I like to talk about food. Tag your recipes #LifeAsAStrawberry on social media to share your creations! Learn about our team!

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    1. Tommy

      August 26, 2022 at 12:01 pm

      My new favorite mac and cheese!

      ★★★★★

      Reply
      • Team Life As A Strawberry

        August 26, 2022 at 12:39 pm

        YAY! So glad to hear you loved it!

        Reply
    2. Kay

      June 30, 2015 at 9:40 am

      i have some left-over lobster that i would like to add to a mac and cheese. which of these recipes do you think would work best with a little lobster?

      Reply
      • Jessie

        July 13, 2015 at 7:53 pm

        I actually have a lobster mac and cheese recipe that it would taste great in!

        Reply
    3. rachel

      October 16, 2013 at 11:18 pm

      This came out horrible.cheese didn't melt. Didnt work.

      Reply
      • Jessie

        November 07, 2013 at 11:34 am

        I'm sorry to hear that! I make this mac and cheese all the time with no problems, but in my experience, when cheese doesn't melt it's usually because of the type of cheese I am using. Some varieties, particularly pre-shredded cheese, are coated with chemical preservatives that prevent the cheese from melting smoothly. I have good luck with Kerrygold, but some other varieties haven't been as smooth for me. This recipe can also be affected by the oil content of the pesto - I like my pesto quite thick, so there isn't a lot of excess oil in there, but occasionally I've used very runny pesto that hasn't blended in with the sauce as well. I hope that you'll try another recipe and that these tips are helpful!

        Reply
    4. Sandy

      May 27, 2013 at 9:39 am

      This was the best thing I have ever tasted! I already had a love affair with arugula but I consider this dish a food group. You are a genius!

      Reply
      • Jessie

        June 09, 2013 at 8:40 pm

        Thanks, Sandy! I'm so glad you liked it! 🙂

        Reply

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