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Southern Squash Casserole

This recipe originally came from my mother-in-law, and was published in June 2018. The photos were updated in June 2024. With a cheesy filling and buttery Ritz cracker topping, this is the ultimate family-friendly side dish!

Prep Time
20 mins
Cook Time
20 mins
Total Time
55 mins
Servings: 6 people
Calories: 2491 kcal
Course: Side Dish
Cuisine: American

Ingredients

  • 2 tablespoons Butter, divided
  • 4 small yellow squash (about 2 lbs.), sliced (about 6 cups total)
  • 1 small onion, diced
  • 1 red bell pepper, diced
  • ½ teaspoon kosher salt
  • ¼ teaspoon ground black pepper
  • 2 large eggs
  • 1 cup grated sharp cheddar cheese
  • ¼ cup sour cream
  • ¼ cup mayonnaise
  • ¾ cup crushed butter crackers (about 18 Ritz crackers)

Instructions

    Cup of Yum
  1. Preheat oven to 350°F. Spray an 8-inch or 9-inch square baking dish with cooking spray and set aside.
  2. Melt 1 tablespoon butter in a large skillet over medium heat. Add squash, onion, and bell pepper to the skillet, cooking and stirring for about 10 minutes (or until vegetables are tender). Remove from heat and season with salt and pepper.
  3. Meanwhile, in a separate bowl, whisk together eggs, cheese, sour cream, and mayonnaise.
  4. Stir the egg mixture into the squash mixture. Transfer the squash mixture into the prepared baking dish. In a separate bowl, combine crushed crackers with remaining 1 tablespoon of melted butter. Sprinkle buttered cracker crumbs over top of casserole.
  5. Bake for 30-35 minutes, or until casserole is set and topping is golden brown.

Notes

  • Weigh or measure your squash so that you're sure to use the correct amount. Yellow squash can vary greatly in size, so you might need anywhere from 4 smaller squash to 2 bigger squash. I prefer small squash, if available, because they are typically more flavorful, tender, and have smaller seeds.
  • Cooking just for two? Cut all of the ingredients in half and bake the casserole in a 1-quart dish.
  • Add fresh herbs, if available. Parsley, thyme, oregano, fresh basil, and chives would all be great! Make it spicy with the addition of cayenne or red pepper flakes.

Nutrition Information

Serving 1/6 of the casserole Calories 249.1kcal (12%) Carbohydrates 14.5g (5%) Protein 10g (20%) Fat 18.1g (28%) Saturated Fat 8.5g (43%) Polyunsaturated Fat 3.6g Monounsaturated Fat 4.8g Cholesterol 98.6mg (33%) Sodium 502.2mg (21%) Potassium 70.2mg (2%) Fiber 1.9g (8%) Sugar 5.2g (10%)

Nutrition Facts

Serving: 6people

Amount Per Serving

Calories 2491

% Daily Value*

Serving 1/6 of the casserole
Calories 249.1kcal 12%
Carbohydrates 14.5g 5%
Protein 10g 20%
Fat 18.1g 28%
Saturated Fat 8.5g 43%
Polyunsaturated Fat 3.6g 21%
Monounsaturated Fat 4.8g 24%
Cholesterol 98.6mg 33%
Sodium 502.2mg 21%
Potassium 70.2mg 1%
Fiber 1.9g 8%
Sugar 5.2g 10%

* Percent Daily Values are based on a 2,000 calorie diet.