Baked Parmesan Zucchini

Name: Baked Parmesan Zucchini
Prep time: 25 min
Cook time: 22 min
Total time: 47 min
Cuisine: European, American, Italian, Mediterranean
Ingredients: 2 pounds zucchini (sliced into ¼-inch pieces); 3 cloves garlic (minced finely); Salt (for seasoning); 2 tablespoons butter (diced into small chunks); ½ cup heavy cream; ½ cup sour cream; 1 teaspoon Italian herbs; 1 teaspoon onion powder; 1 teaspoon salt; ½ teaspoon freshly crushed black pepper; 1 cup grated Parmesan cheese (divided); 1 cup shredded mozzarella cheese (divided)