- Preheat oven to 400°F (205°C).
- Place bread slices on a baking sheet.
- In a small bowl, mix together melted butter and minced garlic (if using).
- Brush the mixture evenly on both sides of the bread slices.
- Sprinkle grated cheese evenly on top of each slice.
- Bake in the preheated oven for 10 to 12 minutes, or until cheese is melted and bread is golden brown.
- Serve hot.