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Zucchini and Squash Casserole Recipe: A Healthy, Comforting Classic


  • Author: Elsa
  • Total Time: 50 minutes
  • Yield: 6 servings 1x
  • Diet: Vegetarian

Description

A light, savory summer casserole featuring zucchini and yellow squash layered with a crunchy, cheesy breadcrumb topping. Perfect as a side dish or vegetarian main.


Ingredients

Scale
  • 2 lbs. zucchini and yellow squash, cut into ¼-inch slices
  • 2 ½ tbsp. olive oil
  • 1 ¼ tsp. salt, divided
  • ½ tsp. pepper
  • ⅓ cup Parmesan cheese, grated
  • ⅓ cup Panko breadcrumbs (gluten-free if needed)
  • ¼ tsp. garlic powder
  • 2 tbsp. fresh parsley, finely chopped

Instructions

  1. Prep the Squash: Slice zucchini and squash into ¼-inch rounds. Sprinkle with ½ tsp salt and let sit for 10 minutes to draw out moisture. Blot dry with paper towels.
  2. Assemble the Casserole: Preheat oven to 350°F (175°C). Lightly grease a 9-inch square baking dish. Arrange squash slices in alternating layers.
  3. Add the Topping: In a small bowl, mix Parmesan, breadcrumbs, and garlic powder. Drizzle olive oil over the layered squash, and season with remaining salt and pepper. Sprinkle the breadcrumb mixture evenly over the top.
  4. Bake: Cover the dish with foil and bake for 30 minutes. Remove foil and broil on high for 3–5 minutes until golden brown and crispy on top.
  5. Serve: Garnish with chopped fresh parsley and serve hot.

Notes

Letting the squash sit with salt helps prevent a soggy casserole. You can add a thin layer of shredded mozzarella or fontina under the breadcrumb topping for extra richness.

  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 portion
  • Calories: 130
  • Sugar: 3g
  • Sodium: 370mg
  • Fat: 9g
  • Saturated Fat: 2g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 8g
  • Fiber: 2g
  • Protein: 4g
  • Cholesterol: 5mg