The homegrown Park Burger is growing into a mini-chain; it’s turning into the grill next door. The original was opened in Platt Park by Frank Bonanno's one-time right-hand guy, Jean-Philippe Failyau, who stuck with a simple formula that proved so winning, he’s opened several more locations in neighborhoods around town. Park Burger doesn't keep a big bar, but it's big enough. The menu isn't huge, either, but it's big enough. Ditto for the dining room. As a matter of fact, nothing about this place is overwhelming — but then, nothing is really supposed to be. At its best moments — and Park Burger is usually at its best — it’s a wonderful example of what a burger joint can be when a fine-dining sensibility is used in the preparation of simple American comfort foods. Bonus points for one of Denver's best vegetarian burgers, which won our Best Veggie Burger for four straight years, from 2011 through 2014.