Heat oven to 375°F. In small bowl, stir together all ingredients except bread.
Spray cookie sheet with cooking spray. Cut star shape from each bread slice with 3- or 4-inch star-shaped cookie cutter. Spread about 1 tablespoon cheese mixture on each bread star; place on cookie sheet.
Bake 12 to 15 minutes or until cheese is melted and bottoms of bread stars are golden brown.