The problem with todays mobile kitchens or mobile catering is that the weather need to be acceptable so you can eat outside. This problem should not be to hard to solve. Why not have a service for these small businesses? The idea is that you can call this service and they will roll out a mobile food cart or trailer next to your kitchen for people to sit and eat in. This way you have split the problem. You also may be the only driver. I think this idea is worth considering since it will be possbile to sell pizzas and other foods for which you need somewhere to sit.