Hearty Zucchini Casserole with Cheesy Layers

Ingredients

• 2 pounds zucchini, sliced into even rounds
• 2 large eggs, at room temperature
• 1 teaspoon kosher salt
• 1 1/2 cups whole milk
• 1 cup cheddar cheese, shredded
• 1 cup Parmesan cheese, shredded
• 1/2 teaspoon black pepper
• 2 cloves garlic, minced