COMPANY LOGO FOR attractive as possible

A new logo for my food business in a small rural town in an agricultural area. I'd like a logo that gives the impression of being professional but with a bit of country charm and character. The colours I'd like to use are white, black(our district is black soil), rich browny/red(sorghum is a major crop grown) and yellow(representing the fields of sunflowers). I plan on buying an old caravan to turn into a mobile coffee/food so the logo will be transfered to the caravan panels. The shop is open from 8am-4pm, doing breakfast/lunch and everything inbetween. The food is big hamburgers, fish and chips, wraps and rolls, home baked goodies etc. I try to use local produce as much as possible. Most of my customers are locals but I also get some of the tradies that come into town. There are still a lot of locals that have never come into my shop so I need to entice them into my shop.