Burger Lounge at 922 Orange Avenue in Coronado is the island's outpost of the San Diego-founded fast-casual chain that has built its menu around 100-percent grass-fed, grass-finished American beef since launching in La Jolla in 2007. Patties arrive as hand-formed one-third-pound singles or the doubled-up Husky, cooked to medium on a flat-top and served on artisan brioche with house-made BL 1000 Island, a straightforward burger format that complements the hand-churned milkshakes and ice cream novelties from MooTime Creamery one block south. The sourcing program locks to two ranches — one in Wisconsin, one in Missouri — for the single-source beef supply, while a parallel menu line covers an Impossible burger, a quinoa-veggie patty, a wild salmon burger, and a bunless Paleo option with grilled zucchini and avocado. A heated sidewalk patio on Orange Avenue welcomes dogs, putting the restaurant within a short walk of both Coronado Beach and the Hotel del Coronado shopping corridor. Beer and wine round out the drink list, including San Diego craft pours from Coronado Brewing Company that pair naturally with the grass-fed beef program. The Truffle Mushroom burger tops the premium tier with Swiss cheese, truffle aioli, arugula, and crispy onions on a sesame-seed brioche.