The fresh leaves (cilantro) of young plants are a staple in Mexican cooking. Fresh cilantro is a key ingredient in homemade salsas and also adds a unique flavor dimension to salad greens.
Rosemary can also be started from seeds, but you may find it easier to pick up small plants from your local garden center each spring.
Fresh thyme is a staple in many types of cuisine and adds a distinctive flavor to meat-based dishes and is wonderful in stews and soups, as well.