If you're a fan of spicy food, this beef and green pepper stir-fry is the perfect dinner recipe for you. Thinly sliced beef is stir-fried with green peppers and a spicy sauce made with chili peppers, garlic, and soy sauce. The heat from the chili peppers adds a kick to the dish, while the green peppers provide a refreshing crunch. This flavorful stir-fry is best served over steamed rice.