Baked Cheesy Southern Squash Casserole Recipe

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4.23 from 31 votes
Yummy Southern side dish staple. Cheesy creamy baked yellow squash casserole.
Total Time 45 minutes

Try our family’s favorite creamy cheesy Southern squash casserole! Baked yellow squash casserole with sour cream, cheddar cheese, and ritz crackers make this recipe a true southern staple in our house! For more recipes like this on see my Recipe Index page.

Baked Cheesy Southern Squash Casserole Recipe

Today I am sharing my recipe for Squash Casserole. This is one of my all-time favorite side dishes that I make at least twice a month.

Now I know a lot of people do not care for squash at all, but to me it is heaven! This dish is a holiday and pot luck staple in the South. If you like squash, cheese, and crackers, this yummy side dish will be a winner for you! Here is our version. I hope you enjoy it as much as we do.

What kind of squash can you use?

Yellow squash is best when making this recipe. You can also use zucchini or butternut instead of yellow squash. I have made this recipe with yellow squash and zucchini together. I use a large 2lb bag of frozen yellow squash or 5-6 fresh yellow squash when they are in season.

Southern Squash Casserole Recipe

INGREDIENTS 

  • 1 32 oz bag of frozen yellow squash or 5-6 large sliced fresh yellow squash, 2 lb
  • 1 large onion sliced and roughly chopped
  • 2 tbsp butter
  • ½ cup sour cream
  • ¼ tsp salt
  • ¼ tsp pepper
  • ½ tsp dried minced garlic
  • 1-2 cups grated cheddar cheese
  • 1 sleeve Ritz Crackers crushed
Yellow squash casserole recipe
  • Saute the squash and onion in 2 tablespoons of butter over medium-low heat. Cover and simmer until squash has almost softened and completely broken down, (about 15 minutes for frozen to 20 minutes for fresh).
  • Strain the liquid from the squash. Press out all of the moisture with a small bowl through a strainer.
  • Mix in sour cream, salt, pepper, garlic, and 3/4 of the cheese.
southern yellow squash casserole recipe
  • Spread mixture in a dish size 8″ x 11″ or 9″ x 9″.
  • Tops with remaining cheese.
  • Top with crushed Ritz crackers.

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Southern Squash Casserole Recipe

Kim
Yummy Southern side dish staple. Cheesy creamy baked yellow squash casserole.
4.23 from 31 votes
Prep Time 20 mins
Cook Time 25 mins
Total Time 45 mins
Course SIDE DISHES
Cuisine American
Servings 6 people
Calories 154 kcal

Ingredients
  

  • 1 32 oz bag of frozen yellow squash or 5-6 large sliced fresh yellow squash, 2 lb
  • 1 large onion sliced and roughly chopped
  • 2 tbsp butter
  • ½ cup sour cream
  • ¼ tsp salt
  • ¼ tsp pepper
  • ½ tsp dried minced garlic
  • 1-2 cups grated cheddar cheese
  • 1 sleeve Ritz Crackers crushed

Instructions
 

  • Preheat oven to 350 degrees F.
  • If squash is frozen, thaw in the microwave in a covered dish with 2 tablespoons of water. If using fresh squash slice and place in a deep skillet pan.
  • Saute the squash and onion in 2 tablespoons of butter over medium-low heat. Cover and simmer until squash has almost softened and completely broken down, {about 15 minutes for frozen to 20 minutes for fresh}.
  • Drain the squash and onions.
  • Place the cooked squash in a colander, on top of a bowl to catch the liquid, then take another small bowl or potato masher and press down to squeeze excess moisture from the squash. You need to remove the moisture or the casserole will be runny.
  • Mix in sour cream, salt, pepper, garlic, and 3/4 of the cheese.
  • Pour mixture into a greased casserole dish and top with remaining cheese and cracker crumbs.
  • Bake for 25-30 minutes.

Nutrition

Serving: 0.25cupCalories: 154kcalCarbohydrates: 9gProtein: 7gFat: 11gSaturated Fat: 6gPolyunsaturated Fat: 1gMonounsaturated Fat: 2gTrans Fat: 0.01gCholesterol: 31mgSodium: 240mgPotassium: 485mgSugar: 5gCalcium: 187mgIron: 1mg

The information shown is an estimate provided by a nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice. Values may vary depending on the brand of foods used.

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8 Comments

  1. Didn’t have enough frozen left so I added a can of Rotel and a small can of diced hatch chilies to the yellow squash…first time added bar-b-que fritos and kids loved it. Second time just added ritz and the hubby and I liked it better.

  2. juliemurkerson says:

    Yum. I love a good squash casserole. I prefer the fresh squash so I’m glad you included the amount of fresh squash needed. Thanks for sharing on Marvelous Mondays. Pinning and sharing on my Facebook page! :)

  3. this looks so yummy. i’ll have to see if i can find a similar frozen squash here in new england. thanks for sharing.

  4. My Mom and sister make a similar recipe for squash casserole for every holiday dinner. I believe they use a can of cream of something soup in it though. Thanks!

    1. She has the recipe for the seasoning at the bottom of the directions. Just simple pepper, salt and garlic mixture. Any squash would probably work but yellow is best!

  5. norma hongerholt says:

    What kind of squash are you using? Can’t wait to try it!

    1. I use frozen sliced yellow squash or 5-6 fresh yellow squash sliced.

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