A panache of vegetables is a mixture of a variety of different vegetables. Panache is a French cooking term and can also be applied to fruits or a mixture of multi-colored ice creams or jellies.
A vegetable panache can be comprised of any variety of vegetables and can act as a side dish or part of a main dish. The chef can prepare the vegetables by steaming, frying, roasting or any number of other methods. The word "panache" originated in the 1550s from French, Italian and Latin, and described decorative feathers. Today, in addition to its culinary definition, the term means "flair" or "flamboyance".