Boiling: Ideal for pasta, rice, and vegetables. Use a pot of salted water and wait for it to boil before adding the food.
Sautéing / Stir-frying: Cook over medium-high heat with a little oil in a frying pan, stirring constantly. It is perfect for vegetables and meats cut into strips.
Roasting / Grilling: Cook directly on a grill or in the oven to brown the surface of meats and vegetables.