Zucchini Moussaka Recipe

Name: Zucchini Moussaka Recipe
Ingredients: 4 small zucchini, cut into 1/4-inch slices; 1 large sweet onion, sliced; 2 tablespoons Vegetable oil; 1 pound lean ground beef; 2 garlic cloves, minced; 1 (14-ounce) can fire-roasted diced tomatoes; 1/3 cup tomato puree; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 1/4 teaspoon cinnamon; pinch of nutmeg; 1 cup cottage cheese; 1 egg, lightly beaten; 1/4 cup feta cheese crumbles; 1/4 cup grated Parmesan cheese