Southern Squash Casserole
Southern Squash Casserole is a delicious and comforting dish that celebrates the flavors of yellow squash. Perfect for family gatherings, potlucks, or holiday dinners, this casserole combines creamy textures with cheesy goodness, making it a favorite for any occasion. Its blend of simple ingredients creates a delightful taste that everyone will love.
Why You’ll Love This Recipe
- Comforting Flavor: The creamy and cheesy mixture pairs perfectly with the natural sweetness of squash.
- Easy to Make: With straightforward steps and minimal prep time, this casserole can be whipped up quickly.
- Versatile Dish: Perfect as a side for any meal or as a main vegetarian option.
- Crowd-Pleaser: It’s a beloved dish that appeals to both kids and adults alike.
- Make-Ahead Friendly: Prepare in advance and bake just before serving for convenience.
Tools and Preparation
Before diving into cooking, gather the essential tools you need to make Southern Squash Casserole efficiently.
Essential Tools and Equipment
- Baking dish
- Large skillet
- Mixing bowl
- Knife and cutting board
- Measuring cups and spoons
Importance of Each Tool
- Baking dish: Ensures even cooking and browning of the casserole.
- Large skillet: Provides ample space for sautéing the squash and onion without overcrowding.
- Mixing bowl: Facilitates easy combining of ingredients for a smooth mixture.

Ingredients
For the Casserole Filling
- 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)
For the Topping
- 1 sleeve buttery crackers (crushed)
- 2 tbsp melted butter
How to Make Southern Squash Casserole
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish and set aside.
Step 2: 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.
Step 3: 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.
Step 4: Assemble the Casserole
Pour the mixture into the prepared baking dish, spreading it evenly.
Step 5: Prepare the Topping
In a small bowl, combine the crushed crackers with melted butter.
– Sprinkle this mixture evenly over the casserole.
Step 6: Bake
Bake in the preheated oven for 25–30 minutes or until the topping is golden brown and the casserole is bubbly.
Step 7: Serve
Remove from the oven, let it cool slightly, and serve warm. Enjoy your Southern Squash Casserole!
How to Serve Southern Squash Casserole
Southern Squash Casserole is a versatile dish that can be enjoyed in various ways. Its creamy texture and cheesy flavor make it a delightful addition to any meal. Here are some serving suggestions to enhance your dining experience.
As a Main Dish
- Serve it as a hearty main course alongside a fresh salad for a light yet filling meal.
Accompanied by Bread
- Pair with warm, crusty bread or garlic bread to soak up the delicious cheesy filling.
With Fresh Herbs
- Garnish with freshly chopped herbs like parsley or chives for an extra burst of flavor and color.
As Part of a Buffet Spread
- Include Southern Squash Casserole in a buffet setting for gatherings, allowing guests to enjoy it alongside other dishes.
How to Perfect Southern Squash Casserole
To ensure your Southern Squash Casserole turns out perfectly every time, consider these helpful tips.
- Choose Fresh Squash: Select medium-sized yellow squash that feels firm and has smooth skin for the best texture.
- Avoid Overcooking: Sauté the squash just until tender to maintain its shape and prevent mushiness in the casserole.
- Mix Thoroughly: Ensure all ingredients are blended well in the mixing bowl for uniform flavor throughout the casserole.
- Watch Your Baking Time: Keep an eye on the casserole while baking; it should be golden brown on top without burning.
- Let It Rest: Allow the casserole to cool slightly before serving. This helps it set up nicely for easier slicing.
Best Side Dishes for Southern Squash Casserole
Southern Squash Casserole pairs well with a variety of side dishes that complement its rich flavors. Here are some excellent options:
- Garlic Mashed Potatoes: Creamy potatoes infused with garlic provide a comforting balance to the casserole.
- Coleslaw: A crunchy, tangy slaw adds freshness and contrast to the rich flavors of the casserole.
- Roasted Green Beans: Crisp-tender green beans seasoned with olive oil and salt create a vibrant addition to your plate.
- Cornbread: Sweet cornbread is a classic Southern accompaniment that pairs beautifully with savory dishes.
- Steamed Broccoli: Lightly steamed broccoli offers a nutritious side that enhances the meal without overpowering it.
- Caesar Salad: A crisp Caesar salad brings crunch and zest, making it an ideal partner for this creamy casserole.
Common Mistakes to Avoid
To ensure your Southern Squash Casserole turns out perfectly, here are some common mistakes to avoid.
- Ignoring the squash moisture: Squash can release a lot of water during cooking. To prevent a soggy casserole, consider patting the sliced squash dry with paper towels before cooking.
- Overcooking the onions: Cooking the onions too long can lead to a bitter taste. Sauté them until they are just translucent for the best flavor.
- Not using enough seasoning: A bland casserole is not enjoyable. Taste your mixture and adjust the salt and pepper to suit your preference before baking.
- Skipping the egg: The eggs help bind the casserole together. Make sure to include them for a better texture and consistency.
- Using stale crackers: Fresh crackers make a big difference in flavor and crunch. Check your cracker stash and use new ones for the topping.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container.
- Southern Squash Casserole can be kept in the refrigerator for up to 3–4 days.
Freezing Southern Squash Casserole
- Use a freezer-safe container or wrap it tightly with plastic wrap.
- It can be frozen for up to 2 months.
Reheating Southern Squash Casserole
- Oven: Preheat to 350°F (175°C) and heat covered with foil for about 20-25 minutes until warmed through.
- Microwave: Place in a microwave-safe dish, cover loosely, and heat on medium power for about 2-3 minutes, checking frequently.
- Stovetop: Heat in a skillet over medium-low heat, stirring occasionally until warmed through.
Frequently Asked Questions
What is Southern Squash Casserole?
Southern Squash Casserole is a creamy dish made primarily with yellow squash, cheese, and seasonings baked until bubbly and golden brown.
Can I use other types of squash?
Yes! You can substitute zucchini or other summer squashes if you prefer. Just ensure they are prepared similarly.
How do I customize my Southern Squash Casserole?
You can add ingredients such as bell peppers, herbs, or even different cheeses to enhance its flavor according to your taste.
Is Southern Squash Casserole suitable for potlucks?
Absolutely! This dish is perfect for potlucks due to its comforting flavor and ease of transport. Your friends will love it!
Final Thoughts
Southern Squash Casserole is not only delicious but also versatile enough to fit any meal occasion. Whether you’re serving it at family gatherings or as a side dish at dinner, it’s sure to please everyone. Feel free to customize it with your favorite ingredients for even more delightful variations!
Southern Squash Casserole
Southern Squash Casserole is a creamy, cheesy dish that highlights the delightful flavors of yellow squash. This comforting casserole is perfect for family gatherings, potlucks, or holiday dinners, where it can steal the show as a side dish or even a main vegetarian option. With its simple yet rich combination of ingredients, it’s sure to become a favorite among both kids and adults alike. Easy to prepare and make-ahead friendly, this dish not only brings warmth to your meal but also offers versatility in serving options. Garnish it with fresh herbs or enjoy it alongside crusty bread for an unforgettable dining experience.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: Serves approximately 8
- Category: Side Dish
- Method: Baking
- Cuisine: Southern
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 sleeve buttery crackers (crushed)
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- In a skillet, melt butter over medium heat; add sliced squash and diced onion. Cook for 5–7 minutes until softened.
- In a mixing bowl, combine cooked squash mixture with cheddar cheese, sour cream, beaten eggs, garlic powder, salt, and pepper.
- Pour the mixture into the prepared baking dish and spread evenly.
- Mix crushed crackers with melted butter; sprinkle over the casserole.
- Bake for 25–30 minutes or until golden brown and bubbly.
- Let cool slightly before serving warm.
Nutrition
- Serving Size: 1 slice (approximately 150g)
- Calories: 250
- Sugar: 3g
- Sodium: 450mg
- Fat: 16g
- Saturated Fat: 8g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 2g
- Protein: 8g
- Cholesterol: 70mg