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southern squash casserole in glass baking dish

Southern Squash Casserole

This is classic southern side dish featuring fresh yellow squash, lots of cheese, heavy cream and a buttery Ritz cracker topping.
5 from 2 votes
Prep Time 10 mins
Cook Time 45 mins
Total Time 55 mins
Course Side Dish
Cuisine American


  • 4 tablespoons butter divided
  • 6 cups of sliced yellow squash about 4 medium squash
  • 1 medium yellow onion chopped
  • 2 cloves garlic minced
  • ¾ cup shredded cheddar cheese
  • ¾ cup grated Parmesan cheese
  • ¾ cup heavy cream
  • ½ cup sour cream
  • ½ teaspoon salt
  • 1 teaspoon black pepper
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • ½ teaspoon paprika
  • ¼ - ½ teaspoon crushed red pepper depending on how much spice you like
  • 1 sleeve Ritz crackers coarsely crushed


  • Preheat oven to 375 degrees Farenheit.
  • Rinse and slice squash and set aside.
  • Heat 2 tablespoons of butter in a skillet over medium high heat.
  • Roughly chop a medium yellow onion and mince 2 cloves of garlic.
  • Add squash, onion and garlic to heated skillet. Sauté until squash and onion are tender, about 8-10 minutes. Remove from heat.
  • Transfer squash mixture to a large bowl. Add cheeses, heavy cream and sour cream. Season with salt, black pepper, garlic powder, onion powder, paprika and red pepper. Stir to incorporate all ingredients.
  • Transfer squash mixture to greased baking dish and top with crushed Ritz Crackers. Add some fresh cracked black pepper right on top and a few pats of butter.
  • Bake in preheated oven for 40-45 minutes until golden and bubbly.
Keyword squash casserole, summer squash, yellow squash
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