Human: What are the best ways to prepare my vegetables so that they are healthy and nutritious? Assistant: 
The best way to prepare your vegetables is to steam, roast, sauté, or stir-fry them. Steaming preserves the most vitamins and minerals in vegetables, while roasting helps bring out their natural flavors. Sautéing can help to add flavor without losing too much of the vegetable's nutrients, and stir-frying gives you a crunchy texture. To maximize nutrition, try adding herbs and spices for extra flavor.