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Yellow Squash Casserole 

If you’re looking for a delicious way to use fresh summer squash, this recipe is easy to make and packed with flavor. Let’s dive in!

Ingredients

For the Casserole:

  • 4 cups yellow squash, sliced (about 2 medium squash)
  • 1 tablespoon olive oil
  • 1 yellow onion, diced
  • 2 cloves garlic, chopped
  • ½ teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon paprika (optional, for depth of flavor)
  • 1 cup shredded cheddar cheese
  • ½ cup sour cream
  • ½ cup mayonnaise
  • 1 egg, lightly beaten

For the Topping:

  • 1 cup crushed Ritz crackers or breadcrumbs
  • 2 tablespoons melted butter
  • ¼ cup grated Parmesan cheese (optional, for extra crunch)

Instructions

How to Make Yellow Squash Casserole

Step 1: Preheat the Oven & Prepare the Dish

  • Preheat oven to 350°F (175°C).
  • Lightly grease a 9×9-inch baking dish.

Step 2: Sauté the Squash & Onions

  1. Heat olive oil in a large skillet over medium heat.
  2. Add sliced squash, onions, and garlic, then season with salt, pepper, and paprika.
  3. Cook for 5-7 minutes, stirring occasionally, until the squash is tender and most of the liquid has evaporated.
  4. Remove from heat and let cool slightly.

Step 3: Mix the Casserole Filling

  1. In a large bowl, combine:
    ✅ Cooked squash mixture
    ✅ Shredded cheddar cheese
    ✅ Sour cream & mayonnaise
    ✅ Lightly beaten egg
  2. Stir everything together until well combined.

Step 4: Assemble the Casserole

  1. Pour the squash mixture into the greased baking dish.
  2. In a small bowl, mix crushed crackers, melted butter, and Parmesan (if using).
  3. Sprinkle the topping evenly over the casserole.

Step 5: Bake Until Golden & Bubbly

  • Bake for 25-30 minutes, or until the topping is golden brown and crispy.
  • Let it cool for 5 minutes before serving.

Notes

How to Store & Reheat Yellow Squash Casserole

Storing Leftovers:

  • Keep in an airtight container in the fridge for up to 4 days.

Reheating Instructions:

  • Oven: Reheat at 350°F for 15 minutes.
  • Microwave: Heat in 30-second intervals until warm.

Can You Freeze This Casserole?

Yes! Freeze the unbaked casserole (without the topping) for up to 2 months. Thaw overnight, add the topping, and bake as directed.

  • Author: niold.com