Irresistible Cheesy Garlic Bread Is Ready in 15 Minutes

Gather the ingredients. The Spruce / Kristina Vanni Prepare the oven racks for using the broiler, so that the bread will be 4 to 6 inches from the heat. Line a baking sheet with nonstick foil. Lay the two long bread pieces, cut side up, on foil; set aside. The Spruce / Kristina Vanni In a mixing bowl using a rubber spatula, stir together butter and mayonnaise until well-blended. The Spruce / Kristina Vanni Stir in the cheddar cheese, mozzarella cheese, and Parmesan cheese. The Spruce / Kristina Vanni Stir in the green onions, garlic, Italian seasoning, black pepper, and crushed red pepper flakes. Mix well. The Spruce / Kristina Vanni Spread the mixture over the cut sides of each of the bread pieces, covering evenly. The Spruce / Kristina Vanni Turn the oven to broil and place the prepared bread under broiler. Broil for 3 to 5 minutes or until the topping is lightly browned and bubbly. Watch carefully as it can burn quickly. The Spruce / Kristina Vanni Remove from oven and using a sharp serrated knife, cut into 2-inch diagonal slices. The Spruce / Kristina Vanni Serve hot and enjoy!