Baked Parmesan Zucchini

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)