First Lady Michelle Obama said in her email about Charlotte winning the Democratic National Convention that barbecue played a role in the decision. Now, we know that Mrs. Obama is trying to get the nation fit and when you think health food, you don’t think barbecue. But some of Charlotte’s barbecue restaurants told me what they would put on a plate for Mrs. Obama so that she could get a great taste of what the Queen City has to offer. Ro’s Bar-B-Cue, 1318 Gaston Ave. Gastonia: Ricky McNeely, the night manager at Ro’s, said the slaw at the fifty year old restaurant is the signature dish because it is a tangy and spicy dip. “It goes very well with the pork that we serve,” McNeely said. “We sell a lot of sandwiches, but we do have plate that has a half of pound of meat, comes with our signature slaw, baked beans, French fries, hush puppies, onion rings and two buns.” And what would McNeely prepare for the First Lady? “Our sliced barbecue, an order of fries and a cherry lemon SunDrop,...