In-N-Out Cookout Trailers bring the quality and friendliness of our stores to you. Corporate picnics. Parties. Weddings. Whatever the event, your guests can enjoy our hamburgers, cheeseburgers and Double-Double® burgers—served by Associates who know what it takes to run a successful cookout. For help with your next event, call our Cookout Department at (626) 813-8295. Why not let us bring the In-N-Out experience to you.