These Aren't Potatoes? Garlic Cauliflower Au Gratin Recipe

Ingredients For These Aren't Potatoes? Garlic Cauliflower Au Gratin Recipe

• 1 Large head cauliflower
• 1 cup Half-and-half
• 4 teaspoon Ground black pepper, divided
• 2 teaspoon Garlic powder
• 2 teaspoon Kosher salt
• 0.25 cup Butter, cut into cubes, divided
• 6 Cloves garlic, thinly sliced, divided
• 3 cup Shredded cheddar cheese, divided
• 8 Slices Mozzarella Cheese
• 1 cup Grated romano cheese