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Yellow Squash Casserole
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5 from 9 votes

Yellow Squash Casserole

Squash Casserole is creamy and cheesy with a buttery Ritz cracker topping.
Course Side Dish
Cuisine Southern
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 6 servings
Calories 280kcal
Author Christin Mahrlig


  • 4 medium yellow squash, ends trimmed and cut into 1/4-inch slices
  • 1 medium onion, sliced
  • salt and pepper
  • 1 egg, lightly beaten
  • 1/4 cup mayonnaise
  • 1/3 cup sour cream
  • 1/4 cup milk
  • 1 cup heaping shredded cheddar cheese
  • 24 Ritz crackers
  • 2 tablespoons butter, melted


  • Preheat oven to 350 degrees and lightly grease a casserole dish.
  • Steam squash and onion until just tender, about 5 to 7 minutes.
  • Season squash and onion with salt and pepper.
  • In a large bowl, whisk together egg, mayonnaise, sour cream, and milk.
  • Stir in cheese, squash and onion. Transfer mixture to casserole dish.
  • Crush crackers and scatter on top of squash. Drizzle with melted butter.
  • Bake for 30 minutes.


Calories: 280kcal