Slap Your Mama It’s So Delicious Southern Squash Casserole
Southern Squash Casserole is a creamy, cheesy, and downright comforting dish that highlights the natural sweetness of yellow squash. This classic Southern recipe is a staple for family gatherings, potlucks, or holiday dinners.
With a buttery cracker topping and a luscious creamy filling, it’s a side dish that might just outshine the main course. If you’re looking for a comforting, crowd-pleasing casserole that screams Southern charm, this recipe is the one to try!
Kitchen Equipment Needed
- Large skillet
- Mixing bowls
- 9×13-inch baking dish
- Spatula
Ingredients Overview
- Yellow Squash: The star of the dish, with a sweet and tender texture.
- Cheese: Sharp cheddar adds a rich, tangy flavor.
- Creaminess: Sour cream and eggs bind the casserole together.
- Crunchy Topping: Buttery crackers provide the perfect contrast to the creamy filling.
Ingredients
- 6 medium yellow squash, sliced
- 1 small onion, diced
- 2 tbsp butter
- 1 cup shredded cheddar cheese
- 1/2 cup sour cream
- 2 large eggs, beaten
- 1/2 tsp garlic powder
- 1/2 tsp salt (or to taste)
- 1/2 tsp black pepper (or to taste)
- 1 sleeve buttery crackers, crushed
- 2 tbsp melted butter
Instructions
Step-by-Step Instructions
- Preheat the Oven:
- Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish and set aside.
- Cook the Squash and Onion:
- In a large skillet, melt the butter over medium heat.
- Add the sliced squash and diced onion. Cook for 5–7 minutes, stirring occasionally, until softened.
- Mix the Filling:
- In a mixing bowl, combine the cooked squash and onion with shredded cheddar cheese, sour cream, beaten eggs, garlic powder, salt, and pepper. Stir until well combined.
- Assemble the Casserole:
- Pour the mixture into the prepared baking dish, spreading it evenly.
- Prepare the Topping:
- In a small bowl, combine the crushed crackers with melted butter. Sprinkle the mixture evenly over the casserole.
- Bake:
- Bake in the preheated oven for 25–30 minutes, or until the topping is golden brown and the casserole is bubbly.
- Serve:
- Remove from the oven, let it cool slightly, and serve warm.
Recipe Tips
- Vegetable Variations: Add zucchini or chopped bell peppers for a colorful twist.
- Cheese Options: Try mixing in Parmesan or Gruyere for added depth of flavor.
- Make-Ahead: Assemble the casserole up to the baking step and refrigerate overnight. Bake just before serving.
What to Serve With This Recipe
- Main Dishes: Perfect alongside fried chicken, grilled fish, or baked pork chops.
- Southern Sides: Pair with collard greens, cornbread, or a fresh garden salad.
Frequently Asked Questions
Can I use frozen squash?
Yes, but thaw and drain the squash thoroughly before cooking to avoid excess moisture.
How do I store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven for best results.
Can I make this gluten-free?
Absolutely! Use gluten-free crackers for the topping and ensure your other ingredients are gluten-free.
Serving Suggestions
This Southern Squash Casserole is a versatile side dish that can be served at any occasion. Whether paired with a hearty Sunday dinner or featured on a holiday spread, it’s sure to be a hit with friends and family. Garnish with fresh parsley or chives for an extra pop of color and flavor.

Southern Squash Casserole
Ingredients
- 6 medium yellow squash sliced
- 1 small onion diced
- 2 tbsp butter
- 1 cup shredded cheddar cheese
- 1/2 cup sour cream
- 2 large eggs beaten
- 1/2 tsp garlic powder
- 1/2 tsp salt or to taste
- 1/2 tsp black pepper or to taste
- 1 sleeve buttery crackers crushed
- 2 tbsp melted butter
Instructions
- Step-by-Step Instructions
- Preheat the Oven:
- Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish and set aside.
- Cook the Squash and Onion:
- In a large skillet, melt the butter over medium heat.
- Add the sliced squash and diced onion. Cook for 5–7 minutes, stirring occasionally, until softened.
- Mix the Filling:
- In a mixing bowl, combine the cooked squash and onion with shredded cheddar cheese, sour cream, beaten eggs, garlic powder, salt, and pepper. Stir until well combined.
- Assemble the Casserole:
- Pour the mixture into the prepared baking dish, spreading it evenly.
- Prepare the Topping:
- In a small bowl, combine the crushed crackers with melted butter. Sprinkle the mixture evenly over the casserole.
- Bake:
- Bake in the preheated oven for 25–30 minutes, or until the topping is golden brown and the casserole is bubbly.
- Serve:
- Remove from the oven, let it cool slightly, and serve warm.