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Spaghetti Mac & Cheese

Spaghetti mac and cheese is a deliciously creamy pasta casserole that you can have on your table in a snap! A thick four cheese sauce coats thin spaghetti noodles in tons of rich flavor.

spaghetti mac and cheese on a white plate with a fresh breadstick on the side

If there’s one food that my kids will never turn down it, it’s mac and cheese.

And to be honest, my husband and I won’t turn it down either.

Because the cheesy noodles grace our table so often, I try to add variety.

And this spaghetti mac and cheese is a nice variation that I stumbled on one day when all I had in my pantry was thin spaghetti instead of elbows or other shorter, thicker pastas.

It’s super delicious and feels even cheesier thanks to the thinner noodles making the sauce feel extra thick.

baked spaghetti mac and cheese in a white casserole dish

Ingredients

To make this you’ll need:

  • Spaghetti– Thin spaghetti noodles are best but angel hair pasta is too thin. You could also use regular spaghetti.
  • Cheese– Shredded fontina, shredded sharp cheddar, and a blend of shredded Swiss and gruyere.
  • Butter– You can use either salted or unsalted
  • Evaporated milk– Do not accidently substitute sweetened condensed milk
  • Heavy cream– A lower fat dairy won’t do! You will lose a lot of that velvety creaminess that you want in this dish.
  • Spices– Ground mustard, garlic powder, onion powder, and cayenne pepper

baked spaghetti mac and cheese in a white casserole dish

How to Make

Making mac and cheese with spaghetti noodles is easy and pretty similar to making regular mac and cheese.

To do it, cook the spaghetti to al dente according to the package directions.

Drain the cook pasta.

While pasta cooks, melt the butter to a large pot set over medium heat.

Once the butter has melted, whisk in the flour to make a roux.

Let it cook, stirring constantly, for about 60 seconds or until it forms a golden paste. 

Once the flour and butter is a golden paste like consistency, slowly whisk in the milk and cream, a little at a time.

When you’ve incorporated all of the milk and cream, whisk in the mustard, garlic and onion powder, and pepper. 

Let the mixture cook for 5 minutes or just until it thickens, whisking constantly.

Then toss all of the cheeses together a large mixing bowl to combine them.

Stir in 3/4’s of the cheese mixture into the cream sauce.

Let it cook, stirring often, until the cheese is melted and smooth.

Once the cheese is melted and smooth, gently stir the pasta into the cheese sauce.

Transfer the spaghetti mac and cheese to a 9×13″ baking dish and spread out in an even layer.

Top the pasta with the remaining cheese. spreading it evenly out overtop.

Bake at 400° for 15 – 20 minutes, just until hot and bubbly.

Carefully remove the hot dish from the oven and let it rest for 5 minutes.

Serve warm and enjoy!

a silver spatula holding up a scoop of spaghetti mac and cheese

Storing Leftovers

Store leftovers either tightly covered with foil right in the baking dish or in an airtight container.

Refrigerate for up to 5 days.

Keep in mind the sauce will thicken as it sits in the fridge.

Reheat the leftovers in a hot oven until warmed through or in the microwave.

spaghetti mac and cheese on a white plate with a fresh breadstick on the side

Tips and Tricks

  • Want to add some protein? Stir some shredded rotisserie chicken into the pasta and cheese sauce prior to transferring it to the casserole dish.
  • You could also add some veggies and stir in chopped steamed broccoli florets or peas prior to putting the pasta into the casserole dish.
  • Don’t skip letting the spaghetti mac and cheese rest. The casserole needs this time for the sauce to thicken up and set before you cut into it.

a silver fork scooping baked spaghetti mac and cheese off a white dinner plate

Other Mac and Cheese Recipes

Spaghetti mac and cheese is a delicious variation of baked mac and cheese that you will love.

Make it and enjoy!

Looking for other mac and cheese recipes?

Try these:

If you’ve tried this SPAGHETTI MAC AND CHEESE, or any other recipe on the site, let me know in the comment section how it turned out, we love hearing from our readers! You can also follow along with me on PINTERESTFACEBOOK, and INSTAGRAM to see more amazing recipes and whatever else we’ve got going on!

spaghetti mac and cheese on a white plate with a fresh breadstick on the side

Spaghetti Mac & Cheese

Spaghetti mac and cheese is a deliciously creamy pasta casserole that you can have on your table in a snap! A thick four cheese sauce coats thin spaghetti noodles in tons of rich flavor.
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Course: Dinner, Entree, Main Course, Pasta
Cuisine: American
Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes
Servings: 8
Calories: 846kcal

Ingredients

  • 1 lb thin spaghetti NOT angel hair
  • 2 cups shredded fontina cheese
  • 2 cups shredded sharp cheddar cheese
  • 2 cups shredded Swiss & gruyere cheese blend
  • 1/4 cup butter
  • 1/4 cup flour
  • 2 12 oz cans evaporated milk
  • 1 cup heavy whipping cream
  • 2 tsp ground mustard
  • 1 tsp garlic powder
  • 1/2 tsp onion powder
  • 1/4 tsp cayenne pepper

Instructions

  • Cook the pasta according to the package directions to al dente, then drain.
    1 lb thin spaghetti
  • While pasta cooks add the butter to a large pot set over medium heat. Once melted add the flour and whisk together to evenly combine. Cook for 60 seconds to cook off the flour taste.
    1/4 cup butter, 1/4 cup flour
  • Slowly pour in the milk, then the cream, whisking them in as you do. Then add the mustard, garlic and onion powder, and pepper. Whisk together until evenly combined. Cook for 5 minutes, whisking constantly, just until thickened.
    2 12 oz cans evaporated milk, 1 cup heavy whipping cream, 2 tsp ground mustard, 1 tsp garlic powder, 1/2 tsp onion powder, 1/4 tsp cayenne pepper
  • Add all of the cheeses to a large mixing bowl, and mix together until combined.
    2 cups shredded fontina cheese, 2 cups shredded sharp cheddar cheese, 2 cups shredded Swiss & gruyere cheese blend
  • Add 3/4's of the cheese mixture to the cream and cook, stirring often, until melted and smooth. Add the pasta to the cheese sauce and gently stir until completely incorporated together.
  • Transfer the spaghetti mac and cheese to a 9x13" baking dish and spread out in an even layer. Sprinkle the remaining cheese evenly out overtop.
  • Bake at 400° for 15 - 20 minutes, just until hot & bubbly. Carefully remove the hot dish from the oven and let it rest for 5 minutes.
  • Serve warm & enjoy!

Notes

  • Want to add some protein? Stir some shredded rotisserie chicken into the pasta and cheese sauce prior to transferring it to the casserole dish.
  • You could also add some veggies and stir in chopped steamed broccoli florets or peas prior to putting the pasta into the casserole dish.
  • Don't skip letting the spaghetti mac and cheese rest. The casserole needs this time for the sauce to thicken up and set before you cut into it.

Nutrition

Calories: 846kcal | Carbohydrates: 57g | Protein: 37g | Fat: 52g | Saturated Fat: 31g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 13g | Trans Fat: 0.2g | Cholesterol: 165mg | Sodium: 646mg | Potassium: 491mg | Fiber: 2g | Sugar: 12g | Vitamin A: 1652IU | Vitamin C: 2mg | Calcium: 880mg | Iron: 1mg
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