Gas grills are outdoor cooking appliances that use propane or natural gas as fuel to cook food. They typically consist of a cooking surface, burners, and a hood or lid. When ignited, the gas burners heat the cooking surface, allowing users to grill meats, vegetables, and other foods evenly. They come in various sizes and styles, including freestanding, built-in, and portable models. Gas grills are prized for their ease of use, quick heating, and versatility, making them a favorite choice for backyard barbecues, picnics, and outdoor gatherings.