Heat oven to 450°. In 1 cup glass measure, combine oil and garlic; microwave on high 30 seconds. Lightly brush top side of each bread slice with oil mixture, arrange on 2 baking sheets. Bake in 450° oven 6 to 8 minutes or until light golden brown.
Layer equal amounts of beef, red peppers, and cheese over toasted bread. Return to oven; bake additional 2 to 4 minutes or until cheese is melted. Serve immediately.