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+ servings

Cheesy Squash Casserole

A creamy, cheesy, and crispy squash casserole that even picky eaters will devour. Quick to prepare and full of flavor, it's the perfect weeknight side—or main!
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 6 servings
Calories 280 kcal

Ingredients
  

  • 4 cups yellow squash sliced thin, about 3–4 medium squash
  • 1 small onion diced
  • 1 cup shredded cheddar cheese or Colby Jack
  • ½ cup sour cream
  • ¼ cup mayonnaise
  • 1 egg beaten
  • 1 cup breadcrumbs Italian style preferred
  • ¼ cup grated Parmesan cheese
  • 2 tablespoons butter melted
  • salt, pepper, and garlic powder to taste

Instructions
 

  • Preheat oven to 375°F (190°C) and grease a 9x13-inch baking dish with butter for extra flavor.
  • Sauté sliced squash and diced onion in a skillet over medium heat for 5–7 minutes, until softened. Drain any excess liquid.
  • In a large bowl, mix sour cream, mayonnaise, egg, shredded cheddar, salt, pepper, and garlic powder.
  • Stir in the cooked squash and onion until fully combined.
  • Transfer the mixture to the prepared baking dish and spread evenly.
  • Top with breadcrumbs and Parmesan cheese. Drizzle melted butter over the top.
  • Bake for 25–30 minutes or until golden brown and bubbly. Let cool for 5 minutes before serving.

Notes

Refrigerate leftovers for up to 3 days and reheat in the oven at 350°F for 10–15 minutes to keep it crispy. To freeze, bake first, then freeze for up to 2 months. For gluten-free, use almond flour or crushed GF crackers. Zucchini can replace squash; just be sure to drain well.

Nutrition

Calories: 280kcalCarbohydrates: 16gProtein: 9gFat: 22gSaturated Fat: 9gCholesterol: 55mgSodium: 420mgPotassium: 300mgFiber: 2gSugar: 4gVitamin A: 600IUVitamin C: 18mgCalcium: 180mgIron: 1mg
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