Tato’s, a build-your-own potato bar, will be the latest addition to the dining lineup at Westfield Montgomery mall. The business already has a location at Commas Food Hall in Silver Spring, where customers load up their baked potatoes with toppings like beef stew, jerk chicken, teriyaki pork, barbacoa with guacamole, chili with sour cream and meatballs with marinara. The menu also includes fries, baked sweet potatoes, and key lime pie for dessert. Tato’s will take the corner space that previously belonged to Chocolate Moonshine — and before that, 7-Eleven. Opening date TBD…