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 Au Gratin?

You need 11 ingredients. The key ingredients include: 1 to 2 lb. can yellow squash, 1/2 c. chopped onion, 1/2 c. mayonnaise, 1 c. grated Cheddar cheese, and more.

Is Squash Au Gratin suitable as general?

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

How do I store leftover Squash Au Gratin?

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

Squash Au Gratin Recipe

Name: Squash Au Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 to 2 lb. can yellow squash; 1/2 c. chopped onion; 1/2 c. mayonnaise; 1 c. grated Cheddar cheese; 1 egg, beaten; 1/2 c. water chestnuts; 1/2 stick butter; 1/2 c. chopped bell pepper; Waverly cracker crumbs; 1 tsp. sugar; salt and pepper to taste

Try this homemade Squash Au Gratin recipe the whole family will love. Made with yellow squash, onion, mayonnaise and Cheddar cheese. Easy step-by-step i…

This Squash Au Gratin relies on simple, everyday ingredients such as to 2 lb. can yellow squash, chopped onion, mayonnaise and grated cheddar cheese. It comes together quickly and makes 4 servings, at about 608 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.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

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

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Squash Au Gratin

Tips for the best results

Variations & substitutions

My Personal Notes

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