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Cheesy Summer Squash Casserole

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  • Author: Jen
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 6-8 servings 1x

Description

A summer squash casserole with a tangy, cheesy squash filling and a crunchy, buttery Panko topping.


Ingredients

Scale
  • 4 medium summer squash, sliced into thin rounds
  • 1 sweet onion, diced
  • 4 tablespoons salted butter, divided
  • 1/4 teaspoon salt
  • 1/8 teaspoon cayenne pepper or less (optional)
  • 1/2 cup plain greek yogurt or sour cream
  • 1/4 cup mayonnaise
  • 1 1/2 cups shredded cheddar cheese, divided
  • 1 cup panko bread crumbs


Instructions

  1. Preheat oven to 350 degrees.
  2. Melt 2 tablespoons of butter in a large nonstick pan over medium-high heat. Saute squash and onions for 10-15 minutes, stirring frequently, until squash starts to soften and onions become translucent.
  3. While squash is cooking, mix together yogurt or sour cream, mayonnaise and 1 cup of shredded cheddar cheese.
  4. Once squash is done sauteing, remove from heat and add yogurt and cheese mixture to the pan. Stir to coat squash well.
  5. Transfer mixture to an 8×8 square baking dish.
  6. Melt remaining two tablespoons of butter in a small bowl and then add panko and remaining 1/2 cup of cheese. You might also add a sprinkle of salt to the panko mixture, especially if you are using unsalted butter. Stir to coat panko in butter and incorporate cheese.
  7. Sprinkle panko topping over squash mixture.
  8. Bake for 25-30 minutes at 350 until topping is lightly browned and casserole is a bit bubbly.