Cilantro, Coriandrum sativum L., is widely used in our kitchen.  See our recipes for Mayan Caviar.  Also, sprinkle leaves on salads, a must with guacamole...Medicinal benefits too...(More) 
Cilantro is a key ingredient in all bean soups, along with mint, lime juice, garlic and epazote.

Right photo: Growing in my mesclun mix of salad greens, early spring.  Plant will self seed in almost all zones.