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Healthy Zucchini Casserole Recipe

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3.9 from 6 reviews

This healthy zucchini casserole recipe is a comforting, cheesy baked dish perfect for showcasing fresh zucchini. It combines tender zucchini slices with a creamy, seasoned egg and parmesan mixture, topped with sharp cheddar cheese and baked until golden and bubbly. Ideal as a nutritious side or light main course, this casserole balances rich flavors with wholesome ingredients for a satisfying meal.

  • Total Time: 42 minutes
  • Yield: 6 servings

Ingredients

Zucchini Layer

  • 2 to 4 zucchini, sliced into half moons about 1/4-inch thick (6 cups total)
  • ¼ teaspoon salt

Cream Sauce

  • ⅓ cup heavy cream
  • 3 whole eggs
  • ¼ cup grated parmesan cheese
  • 3 to 4 cloves garlic, minced
  • 1 teaspoon dried basil
  • ¼ teaspoon freshly ground black pepper (or to taste)
  • ⅛ teaspoon ground nutmeg

Toppings and Garnish

  • 1½ cups shredded cheddar cheese, divided
  • 2 tablespoons butter, sliced into 1/4-inch thick pieces
  • Chopped fresh parsley for garnish

Instructions

  1. Prep: Preheat the oven to 350˚F (175˚C) and grease a 9-inch baking dish with butter. Place the sliced zucchini in the baking dish, sprinkle with ¼ teaspoon salt, toss gently to combine, and set aside to allow zucchini to release moisture.
  2. Combine the cream sauce ingredients: In a mixing bowl, whisk together ⅓ cup heavy cream, 3 whole eggs, ¼ cup grated parmesan cheese, minced garlic, 1 teaspoon dried basil, ¼ teaspoon freshly ground black pepper, and ⅛ teaspoon ground nutmeg until smooth and well blended.
  3. Add cheese and cream sauce: Spread half a cup of shredded cheddar cheese evenly over the zucchini in the baking dish. Pour the prepared cream sauce over the zucchini and cheese, then scatter the 2 tablespoons of sliced butter evenly across the top.
  4. Bake: Place the casserole in the preheated oven and bake for 25 minutes, allowing the zucchini to cook and the flavors to meld while the casserole sets.
  5. Add cheese and continue to bake: Remove the casserole from the oven and evenly sprinkle the remaining shredded cheddar cheese on top. Return to the oven and bake for an additional 7 to 10 minutes, or until the casserole is bubbly, the cheese is browned and melted, and the zucchini is tender when pierced with a fork.
  6. Finish and serve: Remove from the oven and let the casserole rest for 10 to 15 minutes to firm up. Garnish with freshly chopped parsley, slice, and serve warm.

Notes

  • For a lighter version, substitute the heavy cream with half-and-half or a lower-fat cream alternative.
  • You can add other herbs like thyme or oregano to customize the flavor to your liking.
  • To make this dish gluten-free, ensure all your spices and cheese are certified gluten-free.
  • Letting the casserole rest after baking helps it set, making it easier to cut and serve.
  • Use freshly grated cheese for better melting and flavor.
  • Author: Daisy
  • Prep Time: 10 minutes
  • Cook Time: 32 minutes
  • Category: Casserole
  • Method: Baking
  • Cuisine: American
  • Diet: Low Fat