Cheesy Squash Casserole

Cheesy Squash Casserole – DELICIOUS side dish for the holidays or summer cookout. Even squash hates love this cheesy casserole! Squash, bell pepper, onion, flour, baking powder, milk, eggs, cheddar cheese, and Monterey Jack cheese. Can make in advance and refrigerate or freeze for later. A must for your holiday meal!
slice of squash casserole on a plate

Easy Squash Casserole Recipe

Thanksgiving is right around the corner. I am already looking forward to the holiday meal! I know turkey is the star of the meal, but I love all the side dishes! This Cheesy Squash Casserole is definitely going to be on our holiday table! Squash, onion, bell pepper, eggs, and tons of cheese! It is super easy to make and tastes great!

This Cheesy Squash Casserole makes a great side dish or vegetarian main dish! It is almost like a squash quiche without the crust. We love this recipe! It is great at the holidays and any other day of the year.

squash casserole in a baking dish

How to Make Cheesy Squash Casserole

To make this Cheesy Squash Casserole, start by sauteing sliced squash, bell pepper, and onion in a large skillet. You want to cook it until it is nice and soft. Once the veggies are cooked transfer them to a strainer and press down to get all of the liquid out. Squash is very watery, you want to make sure to get as much of the liquid out as possible. Next, combine flour, baking powder, salt, milk, and eggs. Add the cooked squash mixture and the cheese. Transfer the mixture to a baking dish and pop in the oven. 
I used Monterey Jack and Cheddar cheese in this casserole. Feel free to kick it up with some Pepper Jack cheese if you want to kick it up a bit. You can also add a can of diced green chiles. YUM!

Can Squash Casserole be Made in Advance & Frozen

You can make this Cheesy Squash Casserole ahead of time and refrigerate overnight or freeze for later. To bake after refrigerating, let the casserole dish sit on the counter for 30 minutes before baking. To bake after freezing, thaw the casserole completely and bake as directed below.
scooping squash casserole from baking dish

What to Serve with the BEST Squash Casserole

This Cheesy Squash Casserole is perfect for the holidays and any other day of the week. It is good for potlucks, cookouts, and dinner parties. It goes great with just about anything. Chicken, beef, pork, turkey. Here are a few of our favorite recipes from the blog that go great with this Cheesy Squash Casserole:

scooping squash casserole from baking dish
scooping squash casserole from baking dish
collage of two photos of squash casserole
squash casserole in baking dish
scooping squash casserole from baking dish
squash casserole on a plate

quick, easy, simple, casserole. vegetables, quiche, vegetarian, thanksgiving, christmas, gluten-free, summer squash, cookout, potluck, holidays, summer
Side Dish
American
Yield: serves 10 to 12

Cheesy Squash Casserole

prep time: 15 minscook time: 40 mins total time: 55 mins
Cheesy Squash Casserole – DELICIOUS side dish for the holidays or summer cookout. Even squash hates love this cheesy casserole! Squash, bell pepper, onion, flour, baking powder, milk, eggs, cheddar cheese and Monterey Jack cheese. Can make in advance and refrigerate or freeze for later. A must for your holiday meal! #casserole #thanksgiving #christmas #sidedish #squash

ingredients:

  • 5 medium squash, diced
  • 1 bell pepper, chopped
  • 1 onion, sliced
  • 2 Tbsp butter
  • 2 Tbsp flour
  • 2 tsp baking powder
  • 1 tsp salt, or to taste
  • 1/2 cup milk
  • 4 eggs
  • 3 cup shredded Monterey Jack cheese
  • 1 cup shredded cheddar cheese

instructions:

  1. Preheat oven to 325ºF. Lightly spray a 9×13-inch baking dish with cooking spray.
  2. Melt butter in a large skillet over medium-high heat. Add squash, bell pepper, and onion. Cook until vegetables are softened. Transfer vegetables to a strainer. Press down on vegetables to remove any excess liquid.
  3. In a large bowl combine flour, baking powder, and salt. Whisk in milk until smooth. Whisk in eggs, beating well. Store in squash mixture and cheeses.
  4. Pour mixture into prepared pan.
  5. Bake uncovered for 40 to 50 minutes, until a toothpick comes out clean.

NOTES:

Can make in advance and refrigerate or freeze for later.
To bake after freezing, thaw completely and bake as directed above.
Substitute almond flour for all-purpose flour to make this gluten-free.

MORE SIDE DISH RECIPES:

Asparagus Au Gratin
7-Layer Salad
Southern Squash Casserole
Smothered Broccoli
Creamy Crack Potatoes


RECOMMENDED PRODUCTS:
Deep Dish 9×13-inch Baking Dish
Large 14-inch Skillet

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Comments

  1. Let me first say I LUV Plain Chicken recipes – always reliable great recipes! Somehow I merged this recipe and a Southern Living one I read and I sautéed the squash, salt, onion & bell pepper in butter, then mixed with a can of cream of chicken soup and a 1/4 c sour cream, Tbl thyme and black pepper, added in 1 cup shredded cheddar cheese. Put all in glass dish.Topped with crushed cracker crumbs, 2 tbl melted butter and shredded parm. Baked 25 min at 325. Amazing!!!

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