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!

plate of squash casserole

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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 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.

baking dish of squash casserole

How to Make Cheesy Squash Casserole

This casserole is very easy to make. 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? Yes! You can make this casserole ahead of time and refrigerate overnight. To bake after refrigerating, let the casserole dish sit on the counter for 30 minutes before baking.
  • Can Squash Casserole be frozen? Yes! You can make this casserole ahead of time and freeze unbaked for later. To bake after freezing, thaw the casserole completely and bake as directed below.
  • Substitute almond flour for all-purpose flour to make this gluten-free.
scooping squash casserole from baking dish

Great Holiday Side Dish

This 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 casserole:

plate of squash casserole

Cheesy Squash Casserole

Yield: 10 people
Prep Time 15 mins
Cook 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
  • ½ cup milk
  • 4 eggs
  • 3 cups shredded Monterey Jack cheese
  • 1 cup shredded cheddar cheese

Instructions:

  • Preheat oven to 325ºF. Lightly spray a 9×13-inch baking dish with cooking spray.
  • 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.
  • 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.
  • Pour mixture into prepared pan.
  • Bake uncovered for 40 to 50 minutes, until a toothpick comes out clean.

Notes:

  • 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? Yes! You can make this casserole ahead of time and refrigerate overnight. To bake after refrigerating, let the casserole dish sit on the counter for 30 minutes before baking.
  • Can Squash Casserole be frozen? Yes! You can make this casserole ahead of time and freeze unbaked for later. To bake after freezing, thaw the casserole completely and bake as directed below.
  • Substitute almond flour for all-purpose flour to make this gluten-free.

Steph

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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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