Southern Squash Casserole is a classic, comforting side dish popular in the South and often served for holidays and family gatherings. It features tender cooked yellow squash and onions folded into a creamy mixture of sour cream, eggs, and cheese, then finished with a buttery, crunchy cracker topping.
For many Southern families, this casserole is the reason they’ll eat squash at all. It was traditionally served at holiday meals and church potlucks, and remains a nostalgic favorite today.
This dish works well year-round: fresh yellow squash makes it a summer favorite, while its rich, comforting flavor fits perfectly on Thanksgiving, Christmas, or Easter tables.
Generations of cooks in the South have passed down versions of this casserole. It’s simple, satisfying, and a great way to showcase abundant summer squash.
The texture is part of the appeal: soft, lightly seasoned squash and onions in a creamy, cheesy base balanced by a golden, buttery cracker crust that adds a pleasing crunch.
One of the reasons this casserole remains so beloved is how easy it is to prepare. The basic steps are sautéing the squash and onions until tender, mixing them with a simple creamy-cheese mixture, and baking with a cracker topping until golden.
Because the recipe is straightforward, you can easily adapt it to your tastes—use different cheeses, seasonings, or a lighter topping—while keeping the familiar flavor and texture everyone loves.
After sautéing the squash and onions, combine them with eggs, shredded cheeses, and sour cream to create the rich filling. Transfer the mixture to a greased casserole dish, top with crushed buttery crackers, and drizzle with melted butter so the topping browns nicely.
Bake the casserole until it is heated through and the topping turns a light golden brown. The result is a creamy, flavorful side with a crisp, buttery finish that complements roasted meats, ham, or any holiday spread.
This Southern Squash Casserole is crowd-pleasing and easy to transport, making it ideal for potlucks and family dinners. Serve it warm and watch it disappear.
Gather friends and family, bake this comforting casserole, and enjoy a true Southern favorite that pairs well with so many celebratory meals.
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Recipe
Southern Squash Casserole
Ingredients
- 2 tablespoons butter
- 5 yellow squash sliced into 1/4″ slices
- 1 medium onion chopped
- Salt and pepper to taste
- ¼ teaspoon cayenne pepper optional
- 2 eggs
- 1/2 cup shredded cheddar cheese
- 1/2 cup Pepper Jack cheese
- 8 ounces sour cream
- 2 tablespoons butter
- 1 sleeve buttery crackers like Ritz crackers
- 2 Tablespoons melted butter
Instructions
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Preheat oven to 350º F (175º C).
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In a large skillet, melt 2 tablespoons butter over medium heat. Add the sliced yellow squash, chopped onion, and salt and pepper (plus cayenne if using). Sauté until the vegetables are tender, then remove from heat.
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In a large bowl, whisk together the eggs, shredded cheddar, Pepper Jack, and sour cream. Fold the cooked squash and onions into the mixture until evenly combined.
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Spray a 9×13-inch casserole dish with cooking spray. Pour the squash mixture into the prepared dish. Crush the buttery crackers and spread them evenly over the top. Drizzle with the melted butter and bake for 30 to 40 minutes, or until the top is lightly browned and the casserole is heated through.
Video
Nutrition
If you like this recipe, be sure to check out my Sweet Potato Casserole with Marshmallows