Preheat your oven's broiler to high, ensuring the rack is about 4–5 inches away.

In a small mixing bowl, combine softened butter, garlic powder, salt, and pepper until smooth.

Brush both sides of the bread slices with the garlic butter mixture and lay them in a single layer on an ungreased baking sheet.

Toast the bread under the broiler for about 1 minute per side, until light golden brown and crispy.

Sprinkle shredded mozzarella and Italian seasoning over the toasted side of each slice.

Broil again for 2–3 minutes until the cheese is melted and bubbly.

Carefully remove from the oven, allow to cool slightly, and serve hot.