How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Microwave Mac ‘N’ Cheese?

You need 10 ingredients. The key ingredients include: 2 cups uncooked elbow macaroni, 2 cups hot water, 1/3 cup butter, cubed, 1/4 cup chopped onion, and more.

Is Microwave Mac ‘N’ Cheese suitable as pasta & noodles?

Yes, Microwave Mac ‘N’ Cheese falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Microwave Mac ‘N’ Cheese?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Microwave Mac ‘N’ Cheese Recipe

Name: Microwave Mac ‘N’ Cheese
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 cups uncooked elbow macaroni; 2 cups hot water; 1/3 cup butter, cubed; 1/4 cup chopped onion; 3/4 teaspoon salt; 1/4 teaspoon pepper; 1/4 teaspoon ground mustard; 1/3 cup all-purpose flour; 1-1/4 cups milk; 8 ounces process cheese (Velveeta), cubed

Try this homemade Microwave Mac ‘N’ Cheese recipe the whole family will love. Made with elbow macaroni, water, butter and onion. Easy step-by-step instr…

This Microwave Mac ‘N’ Cheese relies on simple, everyday ingredients such as uncooked elbow macaroni, hot water, butter, cubed and chopped onion. It comes together quickly and makes 4 servings, at about 422 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Pasta & Noodles

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

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Microwave Mac ‘N’ Cheese

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions