One of the most comforting and delicious ways to enjoy seasonal vegetables is by making a creamy, cheesy, and delightfully satisfying squash casserole. This dish, known for its golden top layer and tender squash beneath, embodies everything we love about warm, homestyle cooking. As the fall season fills our gardens and farmer’s markets with vibrant squashes, there’s no better time to master this classic recipe.
Every Thanksgiving, I’m taken back to the little red brick house my grandmother lived in, where the aroma of her squash casserole would waft through every corner. It was always the star of the table, outshining even the turkey. To this day, that recipe is a cherished family secret, but I’m thrilled to share a close adaptation that captures the heart of those family gatherings.
Why You’ll Love This Recipe
This squash casserole stands out with its unique blend of flavors and textures:
- Simplicity and Elegance: Despite its gourmet presentation, this recipe is straightforward enough for novice cooks and impressive enough for guests.
- Flexibility: Perfect for potlucks, family dinners, or as a side dish for holiday feasts.
- Comfort in Every Bite: Its creamy texture and cheesy crust offer a soothing and indulgent experience without being overly rich.
- Nutritious and Wholesome: Squash is packed with vitamins and fiber, making this dish both delicious and nutritious.
Ingredients Notes
The beauty of this recipe is that it uses simple, easy-to-find ingredients, each adding its own charm to the final dish. Here’s what you need:
- Squash: Yellow squash works best, providing a subtle sweetness and perfect texture. You can substitute it with zucchini if preferred.
- Cheese: A mix of cheddar and Parmesan offers a sharp, nutty flavor. Feel free to experiment with your favorite cheese combinations.
- Breadcrumbs: A topping of golden breadcrumbs adds a satisfying crunch. Panko offers extra crispiness but regular breadcrumbs are a fine substitute.
- Onion: Enhances the dish with a pop of savory flavor, complementing the sweetness of the squash.
- Egg: Helps bind everything together, ensuring a perfect slice every time.
Recipe Steps
Step 1
Prepare the Squash: Begin by washing your squash thoroughly. Slice them evenly into thin rounds to ensure even cooking. This step is crucial for a creamy texture.
Step 2
Sauté Ingredients: In a large skillet, heat a bit of olive oil and sauté the onions until translucent. Add the squash and cook until just tender, about 5 minutes. Season with salt and pepper.
Step 3
Mix the Cheese and Eggs: In a bowl, whisk together the eggs, sour cream, and a generous amount of cheese. This mixture will form the creamy base of your casserole.
Step 4
Layer and Top: In a greased casserole dish, layer the squash and onion mixture. Pour the cheese-egg mix over it and gently stir to combine. Top with more cheese and breadcrumbs.
Step 5
Bake to Perfection: Preheat your oven to 350°F (175°C). Bake for 25-30 minutes until the top is golden and bubbly. Allow it to cool for a few minutes before serving.
Storage Options
Leftover squash casserole can be a delightful meal on its own or as a side dish later in the week. Store it in an airtight container in the refrigerator for up to 3 days. For longer storage, freeze individual portions wrapped tightly. To reheat, simply thaw (if frozen) and warm in a preheated oven at 325°F until heated through.
Variations & Substitutions
There are countless ways to tailor this dish to suit various dietary needs or personal preferences:
- Gluten-Free: Use gluten-free breadcrumbs to make the dish suitable for those with gluten sensitivities.
- Lower Carb: Substitute with almond flour or crushed nuts instead of breadcrumbs for a low-carb version.
- Vegan: Replace the dairy with plant-based cheese and a flax egg for a vegan twist. Add nutritional yeast for a cheesy flavor.
Serving Suggestions
This casserole is versatile enough for any occasion. Serve it with grilled chicken for a wholesome dinner, or add it to a buffet of sides during the holidays. It’s also perfect as a standalone light lunch, paired with a simple green salad and a glass of crisp white wine.
Frequently Asked Questions
Can I make this casserole in advance? Absolutely! You can prepare the casserole a day ahead and store it covered in the refrigerator. Bake it fresh when you’re ready to serve. Making it ahead allows the flavors to meld beautifully.
What are the best cheeses to use? While cheddar and Parmesan are classic choices, feel free to experiment with gruyere or mozzarella for different flavor profiles. Mixing cheeses can add complexity and depth to the dish.
Can I add meat to this dish? Yes, diced cooked chicken or crumbled sausage can be added for a heartier casserole. It’s a great way to use leftover meats and makes the dish a complete meal.
Is it necessary to pre-cook the squash? Cooking the squash before assembling the casserole helps remove excess moisture, creating a creamier, more flavorful dish.
How do I prevent a soggy casserole? After sautéing, allow the squash to drain on a paper towel to remove excess liquid. This step is key to a firm, sliceable final dish.
Whether you’re a long-time fan of squash casserole or discovering it for the first time, this recipe is sure to become a beloved staple in your kitchen. Its nurturing qualities and delightful flavor make it the Ultimate Comfort Food, celebrating the humble squash in the most delicious way.

Squash Casserole Recipe
Ingredients
Main Ingredients
- 2 pounds yellow squash sliced
- 1 cup shredded cheddar cheese
- 0.5 cup sour cream
- 0.25 cup butter melted
- 1 cup crushed buttery crackers such as Ritz
Instructions
Preparation Steps
- Preheat the oven to 350°F (175°C).
- Bring a large pot of salted water to a boil, then add the sliced squash. Cook until tender, about 5 minutes. Drain well.
- In a large bowl, combine the cooked squash, cheddar cheese, sour cream, and melted butter. Mix well.
- Transfer the squash mixture to a 9x13 inch baking dish. Spread the crushed crackers evenly on top.
- Bake in the preheated oven for 30 minutes, or until the topping is golden brown.