Hangry Joe’s, a “Nashville-style” chicken-and-waffle chain from the founder of SweetFrog frozen yogurt, is heading to Rockville with two upcoming locations. The menu here is pretty simple: chicken sandwiches, chicken fingers, chicken with waffles, Korean chicken nuggets and loaded fries. (Oh… there’s also a salad.) Everything is cooked to your specifications, with spice levels ranging from “no heat” to “angry hot.” One of the new restaurants will be at the Travilah Square shopping center (home of Trader Joe’s), next door to the Tropical Smoothie Cafe. The other will be on Rockville Pike, next door to Roy Rogers.