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. Its rich flavor and delightful texture make it a favorite among both kids and adults alike.
Why You’ll Love This Recipe
- Comfort Food: The creamy consistency and cheesy flavor create a warm and satisfying dish perfect for any occasion.
- Easy to Prepare: This recipe comes together quickly, making it ideal for weeknight dinners or last-minute gatherings.
- Versatile Dish: Serve it as a side at barbecues or as a main course alongside a fresh salad.
- Family-Friendly: Kids love the taste, making it an excellent choice for family meals.
- Seasonal Ingredients: It showcases fresh yellow squash, giving you a vibrant dish that celebrates seasonal produce.
Tools and Preparation
Before diving into this delicious recipe, gather your tools to streamline the cooking process.
Essential Tools and Equipment
- Large skillet
- 9×13-inch baking dish
- Mixing bowl
- Small bowl
Importance of Each Tool
- Large skillet: Perfect for sautéing the squash and onion evenly until tender.
- 9×13-inch baking dish: Provides ample space for the casserole, ensuring even baking.
- Mixing bowl: Essential for combining all the ingredients without making a mess.
- Small bowl: Ideal for mixing the topping ingredients separately before adding them to the casserole.

Ingredients
For the Casserole
- 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 the 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 this delightful Southern Squash Casserole as part of your next meal!
How to Serve Southern Squash Casserole
Southern Squash Casserole is a versatile dish that can complement many meals. Whether for a family dinner or a festive gathering, here are some delightful serving suggestions to enhance your dining experience.
Pair with Protein
- Grilled Chicken: The smoky flavor of grilled chicken perfectly balances the creamy casserole.
- Beef Tenderloin: A juicy beef tenderloin adds a hearty element alongside the soft texture of the squash.
Add a Fresh Salad
- Garden Salad: A light garden salad with mixed greens and a zesty vinaigrette provides a refreshing contrast.
- Coleslaw: The crunchiness of coleslaw pairs well with the softness of the casserole, creating a delightful texture combo.
Serve with Bread
- Cornbread: Sweet cornbread complements the flavors of Southern Squash Casserole beautifully.
- Garlic Bread: Crispy garlic bread offers an aromatic touch that enhances every bite.
How to Perfect Southern Squash Casserole
To ensure your Southern Squash Casserole turns out perfectly each time, consider these helpful tips.
- Use Fresh Ingredients: Fresh yellow squash and onions yield better flavor and texture than frozen alternatives.
- Avoid Overcooking Squash: Cook squash just until tender; overcooking can make it mushy in the casserole.
- Experiment with Cheeses: While cheddar is classic, try mixing in Monterey Jack or Parmesan for added depth.
- Adjust Seasoning to Taste: Every palate is different; taste your mixture before baking and adjust salt and pepper as needed.
- Let it Rest Before Serving: Allowing the casserole to rest for about 10 minutes after baking helps it set up nicely.
Best Side Dishes for Southern Squash Casserole
Pairing side dishes with your Southern Squash Casserole can elevate your meal. Here are some great options to consider.
- Baked Beans: Sweet and savory baked beans provide a hearty contrast to the creamy casserole.
- Roasted Vegetables: A mix of seasonal veggies roasted until caramelized adds color and nutrition to your plate.
- Macaroni and Cheese: This classic comfort food creates a delightful cheesy experience alongside the squash.
- Fried Green Tomatoes: Crispy fried green tomatoes add a tangy crunch that complements the softness of the casserole.
- Potato Salad: A creamy potato salad offers a satisfying contrast in texture and flavor.
- Collard Greens: Smoky collard greens provide an earthy flavor that pairs well with the richness of the casserole.
Common Mistakes to Avoid
It’s easy to make small mistakes when preparing Southern Squash Casserole. Here are some common pitfalls and how to steer clear of them.
- Using Overcooked Squash: Overcooking the squash can lead to a mushy texture. Cook it just until tender in the skillet for the best results.
- Skipping the Seasoning: Neglecting to season your mixture can make the casserole bland. Always taste and adjust the salt and pepper before baking.
- Not Greasing the Dish: Failing to grease your baking dish may result in sticking. Use cooking spray or butter to ensure an easy release after baking.
- Ignoring Topping Texture: A soggy topping can ruin your casserole. Make sure to mix crushed crackers with melted butter for a crispy finish.
- Underbaking the Casserole: Pulling it out too soon means it won’t set properly. Look for a golden top and bubbling edges as indicators of doneness.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftover Southern Squash Casserole in an airtight container.
- It can be kept in the refrigerator for up to 3–4 days.
Freezing Southern Squash Casserole
- Wrap tightly in plastic wrap or aluminum foil before placing in a freezer-safe container.
- This casserole can be frozen for up to 2–3 months.
Reheating Southern Squash Casserole
- Oven: Preheat your oven to 350°F (175°C), cover with foil, and bake for about 20-25 minutes until heated through.
- Microwave: Place individual portions on a microwave-safe plate and heat for 1-2 minutes, checking every 30 seconds.
- Stovetop: Heat in a skillet over low heat, stirring occasionally, until warmed through.
Frequently Asked Questions
Here are some frequently asked questions about Southern Squash Casserole that might help you perfect your dish.
Can I use zucchini instead of yellow squash for my Southern Squash Casserole?
Yes, zucchini works well as a substitute! It will provide a similar texture and flavor.
How do I make my Southern Squash Casserole healthier?
Consider using reduced-fat cheese and sour cream or adding more vegetables like bell peppers or spinach for extra nutrients.
What can I serve with Southern Squash Casserole?
This dish pairs nicely with grilled chicken, turkey, or a fresh salad for a complete meal.
Can I prepare Southern Squash Casserole ahead of time?
Absolutely! You can assemble it the night before and store it in the fridge until you’re ready to bake.
Final Thoughts
Southern Squash Casserole is not only comforting but also versatile! You can customize it by adding other vegetables or adjusting the cheese types according to your preference. Whether you’re serving it at family gatherings or enjoying it as a side dish for dinner, this casserole is sure to impress. Give it a try!

Southern Squash Casserole
- Total Time: 45 minutes
- Yield: Serves 8
Description
Indulge in the comforting flavors of Southern Squash Casserole, a creamy and cheesy dish that showcases the natural sweetness of yellow squash. This delightful casserole is perfect for family gatherings, potlucks, or holiday dinners, appealing to both kids and adults alike.
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)
- Salt and pepper to taste
- 1/2 tsp garlic powder
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- In a large skillet, melt butter over medium heat; add sliced squash and diced onion. Cook for 5–7 minutes until softened.
- In a mixing bowl, combine the cooked squash mixture with cheddar cheese, sour cream, beaten eggs, garlic powder, salt, and pepper until well mixed.
- Pour the filling into the prepared baking dish evenly.
- In a small bowl, mix crushed crackers with melted butter; sprinkle over the casserole.
- Bake for 25–30 minutes until topping is golden brown and casserole bubbles.
- Let cool slightly before serving warm.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main
- Method: Baking
- Cuisine: Southern
Nutrition
- Serving Size: 1 serving
- Calories: 230
- Sugar: 3g
- Sodium: 400mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 2g
- Protein: 8g
- Cholesterol: 70mg
Keywords: Ensure you use fresh vegetables for optimal flavor. Feel free to mix in other cheeses like Monterey Jack or Parmesan for additional depth. Allowing the casserole to rest after baking helps it set nicely.