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Southern Squash Casserole served in a rustic dish, garnished with herbs.

Southern Squash Casserole

A creamy, cheesy casserole featuring fresh yellow squash, savory ingredients, and a buttery crumb topping, perfect for family gatherings or holiday meals.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 8 servings
Course: Side Dish
Cuisine: Southern
Calories: 250
Ingredients Method Notes

Ingredients
  

Main ingredients
  • 2 pounds yellow squash (sliced ¼ inch thick, about 5 medium-sized squash) Fresh yellow squash is recommended.
  • 1/4 cup butter Divided for cooking and topping.
  • 1/2 cup diced onion Sweet or yellow onion works well.
  • 1/2 teaspoon garlic powder
  • 3/4 teaspoon salt Adjust to taste.
  • 1/2 teaspoon black pepper Freshly ground is ideal.
  • 1/2 cup sour cream
  • 1 large egg (beaten)
  • 1 cup shredded cheddar cheese Can substitute with other cheeses.
  • 1/2 cup grated Parmesan cheese Divided for mixing and topping.
  • 1 cup butter crackers (finely crushed, about 25 crackers) Can substitute with gluten-free crackers.

Method
 

Preparation
  1. In a large pan set over medium heat, melt 1 tablespoon of butter. Add the diced onion and sauté for 7-8 minutes until soft and translucent.
  2. Add the sliced squash to the pan and cook for 10-12 minutes until soft, stirring frequently.
  3. To drain excess moisture, place a towel in a colander. Pour the cooked squash and onions on top and let drain for at least 5 minutes, pressing out any extra moisture.
  4. In a large bowl, stir together the drained squash and onion, garlic powder, salt, black pepper, sour cream, beaten egg, shredded cheddar cheese, and 1/4 cup of Parmesan.
  5. In a small bowl, melt the remaining 3 tablespoons of butter. Stir the melted butter and remaining 1/4 cup Parmesan into the crushed crackers.
  6. Scrape the squash mixture into a 1.5 quart baking dish (an 8x8 square dish works well). Sprinkle the butter and cracker mixture evenly over the top.
Cooking
  1. Bake at 350°F for 25 minutes.

Notes

For variations, consider adding bell peppers, fresh herbs, or cooked ground sausage. Store leftovers in an airtight container for up to 3-4 days. It can be reheated in the oven or microwave.
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