Preheat oven to 450ºF. Spray a baking sheet with cooking spray.
Spread butter over each piece of bread. Arrange the pieces on the baking sheet, butter side up.
Sprinkle garlic powder over each piece of bread. Top with shredded cheese.
Place the baking sheet in the oven. Bake for 5-10 minutes, or until cheese is melted and bread is toasted golden-brown. Remove from oven and serve.
When I made this, I used some nice square rolls that had been sliced in half; I simply opened them up and spread butter on the cut sides. However, it should also work fine with ordinary sliced bread, or buns, etc. Bread for making toast doesn’t need to be soft, so this is a good way to use slightly stale bread.
Butter, margarine, or similar bread spread should all work fine. Use what you have and like.
If you wish, some pieces can be made with only garlic powder (for people who dislike cheese) or only cheese (for people who dislike garlic powder).
This took only a little longer to set up than premade garlic toast. It tasted good, and did not contain the obnoxious additives found in most commercial foods.