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 Squash Casserole?

You need 10 ingredients. The key ingredients include: 1 lb. yellow squash, 1/2 c. chopped onion, 1/4 c. chopped green pepper, 2 Tbsp. reduced-calorie mayonnaise, and more.

Is Squash Casserole suitable as general?

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

How do I store leftover Squash Casserole?

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

Squash Casserole Recipe

Name: Squash Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 lb. yellow squash; 1/2 c. chopped onion; 1/4 c. chopped green pepper; 2 Tbsp. reduced-calorie mayonnaise; 1 tsp. salt; 2 (4 oz.) jars diced pimiento, drained; 1 egg; vegetable cooking spray; 2 Tbsp. cracker crumbs; 1/4 c. (1 oz.) shredded reduced-fat Cheddar cheese

Try this homemade Squash Casserole recipe the whole family will love. Made with yellow squash, onion, green pepper and mayonnaise. Easy step-by-step ins…

This Squash Casserole relies on simple, everyday ingredients such as yellow squash, chopped onion, chopped green pepper and reduced-calorie mayonnaise. It comes together quickly and makes 4 servings, at about 164 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

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

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

My Personal Notes

Saved locally in your browser — visible only to you.

Squash Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions