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Our yellow squash casserole recipe features perfectly cooked yellow squash combined with two kinds of cheese, a sour cream sauce, and sweet yellow onions.
Yellow squash sauteed with sweet onions and then baked in a cheesy sour cream sauce. Sounds pretty good, right? I’ve cooked a lot of squash recipes in my kitchen adventures but never one like this.
In fact, I had never eaten a squash casserole until Kim made her version. The buttery topping adds a nice crunchy texture to offset the creamy casserole filling.
If you wanted to add a kick to the recipe, I feel red pepper flakes would be a nice addition. All in all, this recipe is a keeper and I’m pleased to share it with our readers. Now, let’s get in the kitchen and start cooking!
Squash Casserole Instructions:
First things first, you’ll need to preheat your oven to 350 degrees F. and prepare a two (2) quart casserole dish. By prepare, I mean grease it with butter or use a non-stick cooking spray.
After that, start slicing your yellow squash and sweet onions. Personally, I feel like Vidalia onions would be amazing in this casserole. Once that’s done, crumble up your crackers and measure out the rest of the ingredients.
Next, go ahead and toss the olive oil, squash, and onions into a large skillet or saute pan. Cook them over medium heat for about three (3) to five (5) minutes, or until the veggies are soft.
Afterward, while the squash cools, combine the sour cream, cheddar cheese, Parmesan cheese, and salt and pepper. Use a large mixing bowl for blending these ingredients.
Because, once they’re mixed you going to add the onions and squash to the rest of the filling ingredients. Now, use tongs to toss everything together.
Then, transfer the mixture to your casserole dish. Using a separate small bowl, mix together the crumbled crackers and additional Parmesan cheese. Sprinkle this concoction over the casserole and drizzle the melted butter over the crunchy topping.
Place the casserole dish into your oven to bake for about thirty (30) minutes or until the crust is golden brown. Take a look at the photo above as a reference.
Last remove the yellow squash casserole from the oven and let it cool for approximately fifteen (15) minutes before serving. That’s it, your squash casserole recipe is done.
Kim and I hope you enjoy this offering from Berly’s Kitchen, LLC. Furthermore, we hope you have a wonderful day 🙂
Can’t get enough casserole? Then try our Chile relleno casserole made with roasted pablano peppers!
Yellow Squash Casserole Recipe Tips:
There are all kinds of crackers you can use as a topping for this recipe. For example, we chose butter crackers; however, saltines work well with this recipe too. Also, you don’t have to use crackers, bread crumbs or ground chips might make wonderful substitutions.
Yellow isn’t the only kind of squash to choose for this dish. Try using zucchini as the base and adding things like bell peppers or green chilies. The point is, don’t let your creativity or imagination be bound to a recipe. Figure out what kind of squash grows seasonally in your area and try it instead.
Side dishes like this one are a great way to get children accustomed to the taste of fruits and vegetables. Don’t be afraid to make meals like this for little kids. Teach your children that when prepared correctly, fruits and veggies can be nutritious and tasty.
Equipment Needed for Squash Casserole
Looking for more tasty side dishes?
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Yellow Squash Casserole Recipe
Squash Casserole Filling
- 1 Tablespoon Olive Oil
- 4 Medium Yellow Squash (sliced into thin circles)
- 1 Cup Sweet Onions (thinly sliced)
- 1 Cup Sour Cream
- 1 Cup Cheddar Cheese (shredded)
- 1/2 Cup Parmesan Cheese (shredded or grated)
- 1/2 Teaspoon Salt (or to taste)
- 1/2 Teaspoon Black Pepper (or to taste)
- 25 Small Crackers (approximately one ((1)) sleeve, crumbled)
- 1/4 Cup Parmesan Cheese (shredded or grated)
- 2 Tablespoons Unsalted Butter (melted)
- Preheat the oven to 350 degrees, and lightly grease a 2-quart baking dish.
- In a large skillet, heat the olive oil over low-medium heat. Add the squash and onions, and cook until they begin to soften slightly (about 4-5 minutes). Remove from heat.
- Combine the cheddar cheese, Parmesan cheese, sour cream, salt, and pepper in a large bowl. Add the squash and onions, and stir to coat.
- In a separate small bowl, crush the crackers. Then add the Parmesan cheese, and stir to combine.
- Transfer the squash mixture to the prepared baking dish. Top with the cracker mixture, and drizzle with melted butter.
- Place the casserole into the oven, and bake for 30 minutes or until the top is golden brown and the filling is bubbly.
- Remove from oven and allow the casserole to cool for 10-15 minutes before serving.