Remove all extra furniture and fixtures from an old travel trailer. If it has a sink, stove, and refrigerator, keep them until you decide whether you need to replace them. Also keep any generators and water tanks or heaters that were included with the trailer. Come up with a floor plan of how you will use the space you have to work with for your mobile kitchen. Decide what kind of food preparation you enjoy the most and what is most practical for the space and equipment you have available.
Install the big ticket item(s) in your mobile kitchen. If you're going to sell snow cones, you need a big ice machine. Put it where it can be seen from the outside. If you're doing barbecue or gyros, you need a spit, either horizontal or vertical. Let potential customers see and smell what you have to offer. Assure that you have plenty of cold storage for food supplies and any beverages you will be offering.
Paint your travel trailer to match what you are doing with the mobile kitchen. Affix signs to the side of it announcing your menu or flavors - hire a professional sign painter if you have limited artistic talent yourself. Make it as colorful and interesting as possible, using pictures or drawings of your mobile kitchen's specialty. Some food trailers even have plastic sculptures in the shape of ice cream cones, hot dogs, chickens, cows, or pigs.
