A dish is filled with Zucchini casserole with melted cheese on top

Zucchini Casserole

  • Author: Katie Webster
  • Prep Time: 15 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 40 minutes
  • Yield: 8 servings 1x
  • Category: Side Dish
  • Method: Oven
  • Cuisine: American
  • Diet: Vegetarian


This Healthy Zucchini Casserole is an easy gluten-free and low-carb recipe to bring to a potluck and it only takes about 15 minutes to prep!



  • 4 6-inch corn tortillas, cut into wedges
  • 2 ½ pounds zucchini, cut into half moons
  • 1 cup chopped green onions or scallions plus more for garnish
  • ½ cup green salsa
  • ½ teaspoon coarse kosher salt
  • 6 ounces shredded cheddar 


  1. Preheat oven to 350 degrees F. Coat a 9 by 13-inch or similar sized baking dish with cooking spray.
  2. Spread half of the tortilla wedges in the bottom of the baking dish. Top with half of the zucchini, green onions, salsa and salt. Cover with half of the cheese. Repeat with another layer of tortillas, zucchini, green onion, salsa and salt. Refrigerate the remaining cheese for step three. Cover the casserole in foil.
  3. Bake until the zucchini is tender, 55 minutes to an hour. Remove foil and top with the remaining cheese and return to the oven. Bake until the cheese is melted, 7 to 10 minutes. Let casserole rest for about 20 minutes before serving garnished with more green onion.


Can be prepared through step 2 up to 8 hours in advance. Keep in refrigerator. Continue with step 3 adding additional time before adding cheese if necessary to compensate for the fact that it was cold going into the oven. 


  • Serving Size: 2/3 cup
  • Calories: 139
  • Sodium: 390
  • Fat: 7
  • Carbohydrates: 9
  • Fiber: 2
  • Protein: 8
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