Keto Zucchini Pizza Casserole - A Non-Cauliflower Crust Recipe!

Ingredients

• 4 cups of zucchini, shredded (3 medium or 5 small)
• 1/4 teaspoon salt
• 1/2 cup parmesan cheese, grated
• 2 eggs
• 1 1/2 cups mozzarella, shredded, divided
• 1 teaspoon Italian seasoning
• 1 teaspoon garlic powder
• 2 tablespoons olive oil
• 1/2 medium-sized white onion, chopped
• 1 pound ground beef 80/20
• 1 cup no-sugar-added marinara sauce
• 20 pepperoni slices
• 2 1/4 oz. can sliced black olives