Squash casserole is a beloved dish in Southern kitchens, cherished for its creamy texture and comforting flavors. Known as The Best Squash Casserole, this delightful recipe showcases tender yellow squash combined with rich cheeses and a buttery cracker topping that adds a perfect crunch. Ideal for family gatherings, potlucks, or weeknight dinners, this casserole is not only a crowd-pleaser but also a versatile vegetarian option that can stand alone as a main dish.
Why You’ll Love This Recipe
- Delicious Flavor: The combination of creamy cheeses and fresh squash creates an irresistible taste that everyone will enjoy.
- Versatile Dish: Serve it as a side with grilled meats or as a hearty vegetarian main course.
- Easy to Prepare: With simple ingredients and straightforward steps, this casserole is quick to whip up.
- Crowd-Pleasing Appeal: Its rich flavors and comforting texture make it a favorite at any gathering.
- Make-Ahead Option: You can prepare it in advance and bake it just before serving, saving you time on busy days.
Tools and Preparation
To make The Best Squash Casserole, you’ll need some essential tools that will help simplify the cooking process. Having the right equipment can make all the difference in achieving the perfect casserole.
Essential Tools and Equipment
- Skillet
- Mixing bowl
- Baking pan (9×9)
- Knife
- Cutting board
Importance of Each Tool
- Skillet: Essential for sautéing the squash and onion, ensuring they soften properly before baking.
- Mixing bowl: Used to combine all the creamy ingredients, allowing for even mixing.
- Baking pan: A sturdy 9×9 pan provides ample space for the casserole to cook evenly.
Ingredients
Ingredients:
– 1 tablespoon canola oil
– 3 pounds yellow squash (sliced)
– 1 white onion (diced)
– 1 teaspoon salt
– 8 ounces sour cream
– 1 cup shredded cheddar cheese
– 1/2 cup grated parmesan cheese
– 1 large egg
– 1 sleeve Ritz crackers (crushed)
– 2 tablespoons butter (melted)
– 1/4 cup grated parmesan cheese
How to Make The Best Squash Casserole
Step 1: Preheat the Oven
Preheat your oven to 350 degrees Fahrenheit. Lightly grease your baking pan (9×9) to ensure easy removal after baking.
Step 2: Sauté the Vegetables
- Heat canola oil in a large skillet over medium-high heat.
- Add in sliced yellow squash and diced onion.
- Season with salt. Cook while stirring frequently until the squash begins to soften and liquids release, about 7 to 10 minutes.
- Drain well to remove excess moisture.
Step 3: Prepare the Cheese Mixture
In a large mixing bowl:
Combine sour cream, cheddar cheese, parmesan cheese, and egg. Mix until well combined.
Gently fold in the drained squash mixture until everything is coated evenly.
Step 4: Assemble the Casserole
Pour the squash mixture into your prepared baking pan, spreading it out evenly.
Step 5: Add Topping
In another small bowl:
Toss together crushed Ritz crackers, melted butter, and additional parmesan cheese.
Sprinkle this mixture over the top of the squash layer.
Step 6: Bake
Bake in your preheated oven at 350 degrees for about 20 to 25 minutes, uncovered. The topping should be lightly browned when done. Serve hot and enjoy!
How to Serve The Best Squash Casserole
Serving squash casserole is a delightful experience. This dish can be enjoyed in various ways, whether as a vibrant side or a hearty main course. Here are some ideas on how to serve it.
With Fresh Herbs
- Chopped parsley – Sprinkle fresh parsley on top for a burst of color and flavor.
- Basil leaves – Add fresh basil for an aromatic touch that complements the squash.
Accompanied by Protein
- Grilled chicken – Serve with grilled chicken for a protein-packed meal.
- Baked fish – A light baked fish pairs well with the creamy texture of the casserole.
On a Bed of Greens
- Mixed greens salad – Serve atop a bed of mixed greens for added freshness.
- Spinach – A light spinach salad works beautifully alongside this rich dish.
With Bread
- Garlic bread – Serve with garlic bread for a comforting combination.
- Cornbread – A slice of cornbread adds Southern flair and complements flavors nicely.
As Leftovers
- Reheated for lunch – Enjoy this casserole warmed up the next day for an easy lunch option.
- Stuffed in wraps – Use leftovers to make delicious wraps with lettuce and tomato.
How to Perfect The Best Squash Casserole
Perfecting your squash casserole can elevate its flavors and texture. Here are some tips to achieve the best results.
- Use fresh squash – Fresh yellow squash enhances flavor and provides better texture than canned options.
- Drain excess moisture – After cooking the squash, ensure you drain it well to avoid a soggy casserole.
- Experiment with cheeses – Try different cheeses like Monterey Jack or Gouda for unique flavors.
- Add spices – Enhance taste by adding spices such as garlic powder, onion powder, or black pepper.
- Let it rest before serving – Allow the casserole to sit for about 10 minutes after baking. This helps set the layers and makes serving easier.
Best Side Dishes for The Best Squash Casserole
Complementing your squash casserole with side dishes can create a balanced meal. Here are some great options to consider.
- Coleslaw – A crunchy coleslaw adds freshness and balances the richness of the casserole.
- Roasted Brussel Sprouts – These offer a nutty flavor that pairs well with the creamy textures.
- Corn on the Cob – Sweet corn is a classic Southern side that goes perfectly with squash casserole.
- Green Beans Almondine – Crisp green beans topped with almonds add elegance and crunch.
- Potato Salad – A creamy potato salad provides hearty contrast and enhances satisfaction levels.
- Fried Green Tomatoes – These Southern favorites bring extra flavor and texture to your meal.
Common Mistakes to Avoid
When making The Best Squash Casserole, it’s easy to overlook some important details. Here are common mistakes and how to avoid them.
- Skipping the Drain Step: Not draining the cooked squash can make your casserole watery. Always drain well to preserve texture.
- Overcooking the Squash: Cooking squash too long can lead to mushy results. Cook just until softened, about 7 to 10 minutes.
- Ignoring Seasoning: Under-seasoning can leave your dish bland. Don’t forget the salt; it enhances all flavors!
- Not Preheating Your Oven: Baking in a cold oven can affect cooking time and texture. Always preheat before placing your casserole inside.
- Using Low-Quality Ingredients: Cheap cheeses and crackers can ruin the flavor. Opt for quality cheese and fresh ingredients for the best taste.
Storage & Reheating Instructions
Refrigerator Storage
- item Store leftovers in an airtight container.
- item The Best Squash Casserole can be kept for up to 3-4 days in the fridge.
Freezing The Best Squash Casserole
- item Allow the casserole to cool completely before freezing.
- item Use a freezer-safe container or wrap tightly with plastic wrap and foil.
- item It can be stored for up to 2 months in the freezer.
Reheating The Best Squash Casserole
- item Oven: Preheat to 350°F, cover with foil, and heat for about 20 minutes or until warmed through.
- item Microwave: Place in a microwave-safe dish, cover loosely, and heat in intervals of 1-2 minutes until hot.
- item Stovetop: Warm over low heat in a skillet, stirring occasionally until heated through.
Frequently Asked Questions
Here are some common questions about The Best Squash Casserole that might help clarify any doubts.
Can I make The Best Squash Casserole ahead of time?
Yes, you can prepare it a day ahead and refrigerate it before baking. Just add a few extra minutes to the baking time if it’s cold from the fridge.
What type of squash is best for this casserole?
Yellow squash is traditional, but zucchini or a mix of both works great too. They provide similar textures and flavors.
Can I customize The Best Squash Casserole?
Absolutely! You can add ingredients like bell peppers, mushrooms, or even different cheeses for added flavor.
Is The Best Squash Casserole suitable for vegetarians?
Yes, this recipe is vegetarian-friendly, making it perfect for meatless meals!
How do I serve The Best Squash Casserole?
This casserole makes a wonderful side dish but can also stand alone as a hearty vegetarian main course.
Final Thoughts
The Best Squash Casserole is not just delicious; it’s versatile enough for any meal. Perfect as a side dish or a main event, this recipe allows for personal customization based on your taste preferences. Don’t hesitate to try it out; you might find new favorite ingredients!

The Best Squash Casserole
- Total Time: 40 minutes
- Yield: Serves 8
Description
Discover the delightful flavors of The Best Squash Casserole, a creamy and comforting dish that has become a staple in Southern kitchens. This casserole brings together tender yellow squash, rich cheeses, and a buttery cracker topping that creates a satisfying crunch. Whether you’re serving it as a side dish for grilled meats or as a hearty vegetarian main course, this recipe is sure to please at family gatherings, potlucks, or weeknight dinners. With its straightforward preparation and make-ahead option, you can easily whip up this crowd-pleaser any day of the week.
Ingredients
- 1 tablespoon canola oil
- 3 pounds yellow squash (sliced)
- 1 white onion (diced)
- 1 teaspoon salt
- 8 ounces sour cream
- 1 cup shredded cheddar cheese
- 1/2 cup grated parmesan cheese
- 1 large egg
- 1 sleeve Ritz crackers (crushed)
- 2 tablespoons butter (melted)
- 1/4 cup grated parmesan cheese
Instructions
- Preheat your oven to 350°F and grease a 9×9 baking pan.
- Heat canola oil in a skillet over medium-high heat. Sauté sliced yellow squash and diced onion with salt until softened (7–10 minutes). Drain excess moisture.
- In a mixing bowl, combine sour cream, cheddar cheese, parmesan cheese, and egg. Mix well.
- Gently fold in the drained squash mixture until evenly coated.
- Pour the mixture into the prepared baking pan.
- In another bowl, combine crushed Ritz crackers with melted butter and additional parmesan cheese; sprinkle over the casserole.
- Bake uncovered for 20–25 minutes until the topping is lightly browned.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Main Course
- Method: Baking
- Cuisine: Southern
Nutrition
- Serving Size: 1/8 casserole (175g)
- Calories: 280
- Sugar: 3g
- Sodium: 420mg
- Fat: 18g
- Saturated Fat: 9g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 3g
- Protein: 8g
- Cholesterol: 70mg
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