Some ingredients in a recipe can be eliminated without much impact on the texture and flavor of the final product. This is not true of oil. Omitting oil will mean less color for sautéed veggies and more sticking to the pan, especially as you learn to adjust your cooking. That said, cooking without oil is really worthwhile from a whole food–diet perspective, even if it’s just part of the time. The tips that follow are a sneak peek into our oil-free cooking methods; we’ve integrated these tricks into the recipes in this book to preserve flavor while improving nutrition.