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 Speedy Microwave Squash Casserole?

You need 10 ingredients. The key ingredients include: 4 cups summer squash, yellow crookneck and zucchini mixed (3 to 4 medium halved lengthwise and sliced), 1/2 cup carrot, shredded, 1/2 cup onion, chopped, 1 (10 ounce) can 98% fat-free cream of mushroom soup, and more.

Is Speedy Microwave Squash Casserole suitable as soups & stews?

Yes, Speedy Microwave Squash Casserole falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Speedy Microwave Squash Casserole?

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

Speedy Microwave Squash Casserole Recipe

Name: Speedy Microwave Squash Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 4 cups summer squash, yellow crookneck and zucchini mixed (3 to 4 medium halved lengthwise and sliced); 1/2 cup carrot, shredded; 1/2 cup onion, chopped; 1 (10 ounce) can 98% fat-free cream of mushroom soup; 1/2 cup low-fat ricotta cheese; salt and pepper; 1 teaspoon garlic powder; 1 teaspoon parsley flakes; 1/2 cup 2% cheddar cheese, shredded; 1/2 cup crouton, crushed

Try this homemade Speedy Microwave Squash Casserole recipe the whole family will love. Made with summer squash, carrot, onion and cream of mushroom soup…

This Speedy Microwave Squash Casserole relies on simple, everyday ingredients such as carrot, shredded, onion, chopped, low-fat ricotta cheese and salt and pepper. It comes together quickly and makes 4 servings, at about 182 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

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

Coconut cream is a reliable plant-based alternative to dairy cream.

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

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Speedy Microwave Squash Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions