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 3 Cheese Summer Squash Casserole ?

You need 13 ingredients. The key ingredients include: 4 summer squash, diced, 1 onion, diced, 3 cloves garlic, sliced, 2 tablespoons butter, and more.

Is 3 Cheese Summer Squash Casserole suitable as general?

Yes, 3 Cheese Summer Squash Casserole falls under the General category and is a great choice for this type of meal.

How do I store leftover 3 Cheese Summer Squash Casserole ?

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

3 Cheese Summer Squash Casserole Recipe

Name: 3 Cheese Summer Squash Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 4 summer squash, diced; 1 onion, diced; 3 cloves garlic, sliced; 2 tablespoons butter; 2 tablespoons cornstarch; 1/4 teaspoon cayenne; 1/4 teaspoon salt; 1/2 cup water; 12 ounces evaporated milk; 1/2 cup Parmesan cheese, grated; 1/2 cup Feta cheese, crumbled; 4 ounces Provolone, shredded; 2 eggs

Try this homemade 3 Cheese Summer Squash Casserole recipe the whole family will love. Made with summer, onion, garlic and butter. Easy step-by-step inst…

This 3 Cheese Summer Squash Casserole relies on simple, everyday ingredients such as summer squash, diced, onion, diced, garlic, sliced and butter. It comes together quickly and makes 4 servings, at about 326 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 General

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.

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

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3 Cheese Summer Squash Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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