Preheat broiler setting on oven.  Mix together butter and garlic powder in a small bowl.  Add salt and pepper, to taste.  Brush both sides of each slice of bread with butter mixture and place on an ungreased baking sheet.  Broil bread for 1 minute on each side, or until light golden brown.  Sprinkle one side of bread with cheese and Italian seasoning and broil until cheese is melted.  Watch closely to avoid burning.