Capsicum are the sweetest of peppers. These colorful fruits have a mild and subtly sweet taste that changes depending on how ripe they get, as their color changes. The mature green bell peppers have an earthy and grassy taste, while the fully ripe red bell peppers have a fruity and citrusy taste. They’re versatile enough to be used in everything from salsa to stir-fries, but also delicious when eaten raw in salads or sandwiches.