AKA capsicum annuum.Frozen red pepper with cubes dices and slices.Red peppers are a common type of pepper used in many foods, including pepper rellenos, pizza and beef kebabs, among many others. Red peppers have a mild flavor when raw but can be cooked to embolden their taste. Many people enjoy cooking green peppers at high temperatures because the process caramelizes the sugars in the red peppers, resulting in a sweet flavor.