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Baked Zucchini Parmesan Casserole

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  • Author: Evelyn
  • Prep Time: 15–25 minutes
  • Cook Time: 25–30 minutes
  • Total Time: 40–55 minutes
  • Yield: Makes about 1½‑quart casserole (serves approximately 4‑6)
  • Category: Side dish / Light main
  • Method: Baking
  • Cuisine: American‑Italian inspired
  • Diet: Vegetarian

Description

A savory, cheesy baked zucchini parmesan casserole—quick to prepare and perfect as a side or light main dish.


Ingredients

  • 4 cups shredded zucchini (about 3.5 medium zucchinis)
  • ½ teaspoon salt
  • ½ cup finely chopped or shredded onion
  • 1 tablespoon finely chopped garlic (about 3 cloves)
  • 2 large eggs
  • ½ cup grated Parmesan cheese (plus 2 tablespoons more for topping)
  • 1 cup shredded mozzarella cheese
  • ½ cup shredded cheddar cheese
  • ½ cup panko crumbs
  • 2 tablespoons melted salted butter

Instructions

  1. Preheat oven to 375 °F (190 °C). Grease a 1½‑quart baking dish.
  2. Place sliced zucchini in a colander, sprinkle with ½ teaspoon salt, let sit 10 minutes to draw out moisture, then wrap in a towel and wring out excess water.
  3. In a large bowl, combine the squeezed zucchini with chopped onion, minced garlic, beaten eggs, ½ cup Parmesan, mozzarella, and cheddar cheese. Press the mixture evenly into the prepared baking dish.
  4. Bake, uncovered, for 20 minutes to help set the casserole.
  5. Meanwhile, in a small bowl, combine melted butter, 2 tablespoons Parmesan, and panko crumbs.
  6. Remove casserole from oven, sprinkle the breadcrumb mixture evenly on top, then return to oven and bake another 5–10 minutes until topping is golden brown and crispy.
  7. Remove from oven, let cool slightly, then serve.

Notes

  • You can substitute zucchini with yellow squash or eggplant (if using eggplant, salt and drain first).
  • For a vegan or dairy-free version, replace Parmesan with nutritional yeast or plant-based Parmesan substitutes.
  • Panko can be swapped for gluten-free breadcrumbs, almond meal for low‑carb options.

Nutrition

  • Serving Size: Whole recipe (estimated)
  • Calories: 700–800 kcal
  • Fat: 50–60 g
  • Carbohydrates: 40–50 g
  • Protein: 40–50 g