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Squash Casserole

Squash Casserole is a classic Southern side dish made with tender yellow squash, onions, creamy cheese, and a buttery cracker topping. It’s rich, comforting, and the perfect addition to any holiday table or family dinner.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Course Casserole, Side Dish
Cuisine American, Southern
Servings 4
Calories 320 kcal

Ingredients
  

  • 4 cups yellow squash sliced (about 4 medium squash)
  • 1 small onion diced
  • 2 tbsp butter
  • 1 cup shredded cheddar cheese
  • ½ cup sour cream or mayonnaise
  • 1 egg lightly beaten
  • ½ tsp garlic powder
  • ½ tsp salt
  • ¼ tsp black pepper
  • 1 cup crushed Ritz crackers or breadcrumbs
  • 2 tbsp melted butter for topping

Instructions
 

  • Preheat oven: Preheat oven to 350°F (175°C). Grease a 9x9-inch baking dish.
  • Cook squash: In a skillet, melt butter and sauté squash and onion until tender, about 8–10 minutes. Drain any excess liquid.
  • Make filling: In a large bowl, mix cooked squash, cheddar cheese, sour cream, egg, garlic powder, salt, and pepper. Stir to combine.
  • Assemble casserole: Spread mixture evenly into the prepared baking dish.
  • Add topping: Combine crushed crackers with melted butter and sprinkle over the top.
  • Bake: Bake for 25–30 minutes, until bubbly and golden brown on top.
  • Serve: Let cool slightly before serving.

Notes

  • You can use zucchini or a mix of squash varieties for added color and flavor.
  • Add a pinch of cayenne or paprika for a subtle kick.
  • Make it ahead of time and refrigerate before baking — just add 10 extra minutes of cook time.
  • Great for Thanksgiving, potlucks, or as a side to grilled meats.
Keyword Squash Casserole