Creamy Yellow Squash Casserole is a delightful dish that combines the tenderness of yellow squash and onions baked in a creamy, cheesy egg mixture. Topped with a buttery Ritz cracker crust, this casserole is perfect for special occasions and holiday gatherings. Its savory flavors and satisfying textures make it a beloved comfort food. Let’s dive into the details of this easy recipe!
Why You’ll Love This Creamy Yellow Squash Casserole
This recipe is not just another vegetable dish; it’s a celebration of flavors and textures. Here are a few reasons why you’ll adore this yellow squash casserole:
- It’s a creamy squash bake that brings comfort and joy to your table.
- Perfect as a savory yellow squash dish for family gatherings.
- Easy to prepare, making it ideal for busy weeknights.
- Vegetarian-friendly, catering to various dietary preferences.
- Can be customized with spices or additional veggies.
- It’s a healthy creamy yellow squash casserole packed with nutrients.
Ingredients for Creamy Yellow Squash Casserole
Gather these items:
- 2 tablespoons butter
- 4 cups sliced yellow squash
- 1 medium onion, chopped
- 2 large eggs
- 1 cup grated cheddar cheese
- 1 cup milk
- 2 tablespoons butter
- ¼ teaspoon cayenne pepper (optional)
- ½ teaspoon kosher salt
- ½ teaspoon ground black pepper
- 1 sleeve Ritz crackers, crushed
How to Make Creamy Yellow Squash Casserole Step-by-Step
- Step 1: Preheat your oven to 350º F (175º C) to prepare for baking the casserole.
- Step 2: In a medium skillet or sauté pan over medium-low heat, melt 2 tablespoons of butter. Add the sliced yellow squash and chopped onions and cook until they are tender, about 7-10 minutes, stirring occasionally to prevent sticking.
- Step 3: In a large mixing bowl, lightly whisk the eggs. Then add the grated cheddar cheese and milk, whisking until well combined. Incorporate the cooked squash and onions into this egg mixture by stirring well.
- Step 4: Melt the remaining 2 tablespoons of butter in the skillet previously used for the vegetables. Pour the melted butter into the squash mixture. Add cayenne pepper if desired, along with kosher salt and ground black pepper. Stir everything until fully combined.
- Step 5: Spray a 9×13 inch casserole dish with cooking spray. Pour the squash mixture evenly into the prepared dish. Top the casserole with an even layer of crushed Ritz crackers, which will create a crunchy topping once baked.
- Step 6: Place the casserole in the preheated oven and bake for 45 minutes, or until the top is lightly browned and the center is set.
- Step 7: Remove the casserole from the oven and allow it to rest for about 3 minutes before serving. This helps it set further and makes serving easier.
Pro Tips for the Perfect Creamy Yellow Squash Casserole
Keep these in mind:
- Perfect as a holiday side dish or comfort food for special occasions.
- Experiment with different cheeses for a unique flavor.
- Add herbs like thyme or basil for extra freshness.
- For a crunchier topping, broil for the last few minutes of baking.
Best Ways to Serve Creamy Yellow Squash Casserole
This creamy yellow squash side dish can be served in various ways:
- Pair it with grilled chicken or fish for a complete meal.
- Serve alongside a fresh garden salad for a light dinner.
- It’s also a fantastic addition to potlucks—everyone will love this cheesy squash casserole recipe.

How to Store and Reheat Creamy Yellow Squash Casserole
To store leftovers, cover the casserole tightly and place it in the refrigerator. It will keep well for up to 3 days. To reheat, simply pop it back in the oven at 350º F (175º C) until warmed through, about 20 minutes. This makes it convenient for meal prep and easy dinners throughout the week.
Frequently Asked Questions About Creamy Yellow Squash Casserole
What is creamy yellow squash casserole?
This dish is a comforting casserole made primarily from yellow squash, onions, eggs, cheese, and spices, all baked together for a deliciously creamy flavor.
Can I make creamy yellow squash casserole ahead of time?
Yes, you can prepare the casserole the day before. Just assemble it, cover it, and refrigerate until you’re ready to bake. This makes it a great option for gatherings.
How do I avoid common mistakes with creamy yellow squash casserole?
To prevent sogginess, ensure the squash is cooked just until tender and not overly mushy before adding it to the egg mixture. Also, allow the casserole to rest before serving for better slicing.
Variations of Creamy Yellow Squash Casserole You Can Try
Here are some fun twists on this classic recipe:
- For a Mediterranean flair, add diced tomatoes and feta cheese.
- Incorporate spinach for a nutrient boost in this vegetarian yellow squash bake.
- Mix in breadcrumbs for a crunchy topping or replace Ritz crackers with panko for a different texture.

For more delicious recipes, check out our Gingerbread Tiramisu or Creamy Vegetable Soup. If you’re looking for a comforting side dish, try our Green Bean Casserole Recipe or Garlic Parmesan Chicken. Don’t forget to explore our Cranberry Custard Pie for a sweet finish!
Print
Delicious Creamy Yellow Squash Casserole Recipe
- Total Time: 50 minutes
- Yield: 8 servings 1x
- Diet: Vegetarian
Description
This classic Squash Casserole recipe features tender yellow squash and onions baked in a creamy, cheesy egg mixture topped with a buttery, crunchy Ritz cracker crust.
Ingredients
- 2 tablespoons butter
- 4 cups sliced yellow squash
- 1 medium onion, chopped
- 2 large eggs
- 1 cup grated cheddar cheese
- 1 cup milk
- 2 tablespoons butter
- ¼ teaspoon cayenne pepper (optional)
- ½ teaspoon kosher salt
- ½ teaspoon ground black pepper
- 1 sleeve Ritz crackers, crushed
Instructions
- Preheat your oven to 350º F (175º C) to prepare for baking the casserole.
- In a medium skillet or sauté pan over medium-low heat, melt 2 tablespoons of butter. Add the sliced yellow squash and chopped onions and cook until they are tender, about 7-10 minutes, stirring occasionally to prevent sticking.
- In a large mixing bowl, lightly whisk the eggs. Then add the grated cheddar cheese and milk, whisking until well combined. Incorporate the cooked squash and onions into this egg mixture by stirring well.
- Melt the remaining 2 tablespoons of butter in the skillet previously used for the vegetables. Pour the melted butter into the squash mixture. Add cayenne pepper if desired, along with kosher salt and ground black pepper. Stir everything until fully combined.
- Spray a 9×13 inch casserole dish with cooking spray. Pour the squash mixture evenly into the prepared dish. Top the casserole with an even layer of crushed Ritz crackers.
- Place the casserole in the preheated oven and bake for 45 minutes, or until the top is lightly browned and the center is set.
- Remove the casserole from the oven and allow it to rest for about 3 minutes before serving.
Notes
- Perfect as a holiday side dish or comfort food for special occasions.
- Offers a delicious blend of savory flavors and a satisfying texture contrast.
- Prep Time: 10 minutes
- Cook Time: 40 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 106
- Sugar: 2 g
- Sodium: 250 mg
- Fat: 6 g
- Saturated Fat: 3 g
- Unsaturated Fat: 2 g
- Trans Fat: 0 g
- Carbohydrates: 9 g
- Fiber: 1 g
- Protein: 5 g
- Cholesterol: 70 mg
