If any one restaurant defines the laid-back, somewhat goofy Austin aesthetic, it's probably Shady Grove. On any clear day, expect the stone patio here to be packed with folks fighting the heat with schooner-sized frozen margaritas. Visitors to Barton Springs Pool frequent this state park-inspired establishment for its casual, but funky vibe and huge servings of affordable, simple fare. Burgers and hot dogs are big movers here, as are the vegetarian "hippie sandwiches" (roasted eggplant and grilled vegetables) and impossibly large salads. Their live music series, Unplugged at the Grove, draws high-wattage talent to the outdoor stage throughout spring and summer.