Yellow Squash Casserole

Yellow Squash Casserole is a creamy, cheesy, and comforting dish made with tender squash, a rich sauce, and a crispy topping. Perfect for potlucks, holiday dinners, or a cozy side dish, this easy squash casserole is a Southern favorite that highlights the natural sweetness of yellow squash.

Why You’ll Love This Recipe

• Great Use for Fresh Squash – A delicious way to enjoy summer squash.
• Creamy & Cheesy – A rich, flavorful sauce makes every bite irresistible.
• Crispy Topping – Buttery cracker crumbs add a satisfying crunch.
• Perfect for Any Occasion – A comforting side dish for holidays or weeknight meals.

Ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

• 4 cups yellow squash, sliced
• ½ cup onion, chopped
• 2 tbsp butter
• ½ cup sour cream
• ½ cup mayonnaise
• 1 cup cheddar cheese, shredded
• ½ tsp garlic powder
• ½ tsp salt
• ¼ tsp black pepper
• 1 cup Ritz crackers or panko breadcrumbs, crushed
• 2 tbsp butter, melted

Directions

Step 1: Cook the Squash

1. Preheat oven to 375°F (190°C).
2. In a large skillet, melt 2 tbsp butter over medium heat. Add yellow squash and onion, and sauté for 5-7 minutes until softened. Drain any excess liquid.

Step 2: Make the Filling

3. In a mixing bowl, combine the cooked squash and onions with sour cream, mayonnaise, cheddar cheese, garlic powder, salt, and black pepper. Mix well.

Step 3: Assemble the Casserole

4. Spread the squash mixture evenly into a greased 9×13-inch baking dish.
5. In a small bowl, mix crushed crackers with melted butter, then sprinkle over the top.

Step 4: Bake & Serve

6. Bake for 25-30 minutes, or until the topping is golden brown and the casserole is bubbly.
7. Let cool for 5 minutes, then serve warm.

Servings and Timing

• Servings: 6-8
• Prep Time: 10 minutes
• Cook Time: 30 minutes
• Total Time: 40 minutes

Variations

• Low-Carb Version – Swap cracker topping for crushed pork rinds or almond flour.
• Spicy Kick – Add diced jalapeños or a pinch of cayenne pepper.
• Extra Cheesy – Mix in Monterey Jack or Parmesan for a cheesier bite.
• Gluten-Free Option – Use gluten-free breadcrumbs or crackers.
• Healthy Alternative – Replace sour cream with Greek yogurt for a lighter dish.

Storage & Reheating

• Refrigeration: Store in an airtight container for up to 3 days.
• Freezing: Freeze (without topping) for up to 2 months. Add fresh topping when reheating.
• Reheating: Bake at 350°F for 15 minutes, or microwave individual portions for 30 seconds.

FAQs

Can I use zucchini instead of yellow squash?

Yes! Zucchini works well, or use a mix of both for color and flavor.

How do I prevent my casserole from being watery?

Drain cooked squash well before mixing and avoid overcooking.

Can I make this casserole ahead of time?

Yes! Assemble up to 24 hours in advance, cover, and refrigerate. Add topping just before baking.

What’s the best cheese for squash casserole?

Cheddar is classic, but Parmesan, Gruyère, or Colby Jack also work well.

Can I make this without sour cream?

Yes, substitute with Greek yogurt or cream cheese for a similar creamy texture.

What main dishes pair well with yellow squash casserole?

It pairs well with grilled chicken, roasted turkey, pork chops, or BBQ ribs.

Can I add meat to this casserole?

Yes! Cooked bacon, ham, or shredded chicken make great additions.

How do I make this dairy-free?

Use dairy-free cheese, plant-based butter, and a sour cream alternative.

How do I get a crispier topping?

Broil for the last 2-3 minutes for extra crispiness.

Can I add eggs to this casserole?

Yes! Adding 2 beaten eggs creates a firmer, soufflé-like texture.

Conclusion

This Yellow Squash Casserole is a creamy, cheesy, and crunchy side dish that’s easy to make and full of flavor. Whether you’re using garden-fresh squash or looking for a comforting Southern classic, this dish is always a hit. Try different variations, pair it with your favorite main course, and enjoy this delicious squash recipe!