Cheesy Squash Casserole Recipe
A comforting and versatile Cheesy Squash Casserole featuring fresh yellow squash and zucchini combined with sharp cheddar and Parmesan cheeses, baked to a golden, bubbly perfection. This easy-to-make casserole blends creamy textures, savory flavors, and a crunchy breadcrumb topping to create a family-friendly dish perfect for any occasion.
- Author: Mary
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: 6 to 8 servings 1x
- Category: Appetizers
- Method: Baking
- Cuisine: American
- Diet: Gluten Free
Vegetables
- 3 cups yellow squash, thinly sliced
- 3 cups zucchini, thinly sliced
- 1 medium onion, finely diced
Cheeses
- 2 cups sharp cheddar cheese, shredded (reserve 1/2 cup for topping)
- 1/2 cup Parmesan cheese, grated
Wet Ingredients & Seasonings
- 1/2 cup mayonnaise
- 1/2 cup sour cream
- 1 teaspoon garlic powder
- 1 teaspoon salt
- 1/2 teaspoon black pepper
Topping
- 1 cup bread crumbs
- 2 tablespoons butter
- Prepare Squash and Vegetables: Wash and slice the yellow squash and zucchini evenly into thin rounds. Dice the onion finely to ensure every bite has balanced flavors.
- Combine the Wet Ingredients: In a large mixing bowl, blend together mayonnaise, sour cream, garlic powder, salt, and pepper until smooth and creamy.
- Mix Squash and Cheese: Fold the sliced squash, zucchini, and onions into the wet mixture, then stir in most of the sharp cheddar cheese, reserving some for the topping.
- Assemble the Casserole: Transfer the squash mixture into a greased baking dish, spreading evenly. Sprinkle the remaining cheddar and Parmesan cheese evenly on top.
- Prepare the Bread Crumb Topping: In a small pan, melt butter and toss in the bread crumbs until golden brown, then sprinkle this crispy layer over the cheese-topped casserole.
- Bake to Perfection: Bake the casserole in a preheated oven at 350°F (175°C) for about 40 minutes or until the top is bubbly and golden, and the squash is tender.
Notes
- Use fresh, firm squash for best texture and flavor.
- Gently combine ingredients to avoid making the squash mushy.
- Use good-quality sharp cheddar cheese for richer taste and better melt.
- Toast bread crumbs separately for a crunchier topping.
- Allow casserole to rest slightly before serving to set and slice cleanly.
Nutrition
- Serving Size: 1 cup
- Calories: 280
- Sugar: 4g
- Sodium: 460mg
- Fat: 20g
- Saturated Fat: 8g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 3g
- Protein: 10g
- Cholesterol: 35mg
Keywords: cheesy squash casserole, yellow squash recipe, zucchini casserole, baked squash dish, easy squash casserole, family-friendly casserole