There’s something magical about the way certain dishes have the power to transport us back in time, to moments filled with laughter, warmth, and love. This Amazing Corn and Squash Casserole is one of those dishes for me. Growing up in a small town in Louisiana, every family gathering was a celebration of flavors, and my grandmother’s kitchen was the heart of it all. Her hands, seasoned with the wisdom of countless meals, would guide me through the art of cooking, where each ingredient was more than just a component—it was a story. This casserole, with its simple, honest ingredients, always reminds me of her gentle voice and the love she poured into her food. It’s a dish that wraps you in a comforting hug, just like she used to.
Why You’ll Absolutely Love This Recipe
- It’s a delightful blend of flavors that feels like a warm embrace.
- So simple to make, it feels like a little kitchen victory every time!
- Perfect for family gatherings or cozy nights in.
- It’s a versatile side dish that pairs beautifully with everything.
Simple Ingredients for a Delicious Treat
Every ingredient in this casserole is like an old friend—familiar, comforting, and full of potential. Fresh or frozen corn kernels bring a burst of sweetness that complements the tender yellow squash perfectly. The onion adds a savory depth, while the butter ensures everything melts together harmoniously. And let’s not forget the cheddar cheese, which adds a creamy richness that ties it all together. If you’re wondering What To Eat With Squash, this casserole is your answer.
You’ll find the full ingredient list with exact measurements in the recipe card below!
Let’s Make Some Magic: Step-by-Step
Imagine me right there with you, apron on, ready to dive into this delightful dish. First, preheat your oven to 375°F (190°C). In a large skillet, melt the butter over medium heat. Add the chopped onion and cook until softened, about 3-5 minutes. Stir in the flour and cook for 1 minute, stirring constantly, to form a roux. Gradually whisk in the milk, stirring until the mixture thickens and is smooth. Add the corn, squash, salt, and pepper to the skillet. Stir to combine. Fold in 3/4 cup of the shredded cheddar cheese, pour the mixture into a 9×13 inch baking dish, and if desired, sprinkle the remaining 1/4 cup cheddar cheese and breadcrumbs over the top. Bake for 25-30 minutes, or until bubbly and lightly golden brown. Let it stand for a few minutes before serving. And there you have it, a dish that sings with flavor!
A Few of My Favorite Tips
Here’s a little secret from my kitchen to yours: if you want to add a touch more flavor, try sautéing the squash with a bit of garlic before adding it to the skillet. And don’t shy away from experimenting—this casserole is a wonderful canvas for adding other vegetables you love.
How I Like to Serve This
This casserole is a star on its own, but pair it with a light salad like my Corn Salad or a refreshing Cucumber Tomato Salad for a meal that’s both satisfying and refreshing. It’s a wonderful way to celebrate the flavors of the season.
Storing & Reheating (If There’s Any Left!)
If you have leftovers, consider yourself lucky! This casserole keeps well in the fridge for up to three days. Simply cover it tightly or transfer it to an airtight container. Reheat it in the oven at 350°F (175°C) until warmed through, or pop a portion in the microwave for a quick bite. It’s just as delicious the next day, if not more so!

Amazing Corn and Squash Casserole: 1 Perfect Dish
Ingredients
Vegetables
- 2 cups fresh or frozen corn kernels
- 2 cups diced yellow squash
- 1/2 cup chopped onion
- 1/4 cup butter
- 1/4 cup all-purpose flour
- 2 cups milk
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1 cup shredded cheddar cheese
- 1/2 cup breadcrumbs (optional, for topping)
Instructions
- Preheat oven to 375°F (190°C).
- Melt butter in a skillet, add onion, and cook until softened.
- Stir in flour, cook for 1 minute, then whisk in milk until thickened.
- Add corn, squash, salt, and pepper; stir to combine.
- Fold in 3/4 cup cheese, pour into baking dish, and top with remaining cheese and breadcrumbs.
- Bake for 25-30 minutes until bubbly and golden brown.