Choose an assortment of 4 or 5 vegetables that complement each other in color and texture. Separate less tender vegetables (onions, broccoli stems, carrots, etc.) from tender vegetables (mushrooms, etc.).
Combine soy sauce, sherry, sugar, and cornstarch, mix thoroughly and set aside.
In a large frying pan or wok heat oil over high heat. Add gingerroot, garlic, cumin, turmeric, coriander, and red peppers. Stir-fry about 1/2 minute.
Add less tender vegetables and stir-fry 1 - 2 minutes. Add rest of vegetables and stir-fry 1 - 2 minutes.
Add soy sauce mixture and heat quickly, stirring constantly, until sauce is slightly thickened and all vegetables are coated and heated through.