Stir-fry is a quick and healthy cooking method that involves frying small pieces of food in a hot pan or wok. This technique allows ingredients like vegetables, meat, and tofu to cook rapidly while retaining their color, texture, and nutrients. The key is to use high heat and keep the food moving, ensuring everything cooks evenly and doesn't burn. Typically, stir-fry dishes are flavored with sauces such as soy sauce or teriyaki sauce, adding delicious taste to the mix. It's a versatile meal that can be customized with your favorite ingredients, making it a popular choice for busy weeknight dinners.