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Creamy healthy one pot broccoli mac and cheese with tender broccoli florets and a rich golden cheese sauce.

Healthy One Pot Broccoli Mac & Cheese

This creamy broccoli mac and cheese comes together in one pot and 30 minutes. No cashew cream, no complicated steps—just sharp cheddar, tender broccoli, and a silky sauce that even picky eaters love. It is the weeknight hero you have been looking for.
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Course Dinner, Main Course
Cuisine American
Servings 4
Calories 420 kcal

Equipment

  • 4- to 5-quart Dutch oven or heavy pot
  • Box grater or microplane
  • Wooden spoon or silicone spatula
  • Measuring cups and spoons

Ingredients
  

  • 1 lb small pasta (elbow, shells, or cavatappi)
  • 1 large head broccoli (about 1 lb)
  • 4 tbsp unsalted butter
  • 3 tbsp all-purpose flour
  • 2.5 cups whole milk or 2%
  • 1 tsp Dijon mustard
  • 8 oz sharp cheddar, freshly grated
  • 0.25 tsp fresh-grated nutmeg
  • Salt and black pepper to taste

Instructions
 

  • Fill the pot with water and salt it generously. Bring to a rolling boil. Add the pasta and cook it 2 minutes short of the package directions (until still white in the center).
  • Add the chopped broccoli in the last 3 minutes. The residual heat from the pasta water softens it perfectly.
  • Reserve 1 cup of the starchy pasta water, then drain the pasta and broccoli together in a colander. Set aside.
  • Melt the butter in the same pot over medium heat until foamy but not browned. Add the flour and whisk constantly for 1 minute to make a roux.
  • Slowly pour in the milk while whisking. Continue whisking until the mixture thickens enough to coat the back of a spoon, about 3-4 minutes.
  • Turn the heat to low and stir in the mustard, nutmeg, and 3/4 of the cheese. Stir until the cheese is fully melted and the sauce is glossy.
  • Add the drained pasta and broccoli back to the pot. Fold gently until combined. The broccoli should be tender enough that some melts into the sauce.
  • Thin the sauce with the reserved pasta water, adding 1/4 cup at a time, until the sauce is loose enough to pool but thick enough to cling to the pasta.
  • Taste and season with salt and a generous amount of black pepper. Add a final grating of nutmeg if desired. Let rest 2 minutes off heat before serving.

Notes

Make ahead: Store in an airtight container in the fridge for up to 4 days. Reheat with a splash of milk.
Don't skip: Shred your own cheese and add the mustard and nutmeg – they make the sauce taste more complex.
For gluten-free: Use GF pasta and flour blend, increase milk slightly.
Pro tip: Reserve extra pasta water – the sauce thickens as it sits, and a splash brings it back to silky.
Keyword healthy mac and cheese, one pot dinner