Preheat oven to 400 degrees. Set aside two cookie sheets.
Spread half the green beans, onion, red pepper and bacon on each cookie sheet.
Drizzle olive oil over green bean mixture. Salt and pepper to taste and stir together. Make sure green bean mixture is spread out evenly over cookie sheet.
Bake for 10 minutes. Add minced garlic clove to each cookie sheet and stir. Bake another 10 minutes. Serve immediately.