Jackie O Burger: lamb, feta, baby spinach, oven-roasted tomato and tzatziki, served on a brioche bun.

Ground Chuck Norris Burger containing two “smashed” patties, American cheese, Louie dressing, onion strings and bacon jam.

Park Patty Melt with American cheese, onions tossed in hot sauce, and Russian dressing on rye.

Bistro Burger with chipotle avocado crema, applewood-smoked bacon, caramelized onion, arugula and smoked Gouda.

Ted’s Montana Grill offers its Avalon Burger with Gruyère, blue cheese, bacon-caramelized onions, roasted-garlic aïoli, baby arugula on a toasted brioche

Red Cow offers a Barcelona Burger with manchego, jamón serrano, piquillo pepper and smoked pepper aïoli