Burger Shack, Southlake

They call it the 30-minute challenge. The test: devour a 2-pound Angus burger, a side of fries and onion rings, and a creamy milkshake, all before the half-hour mark. Customers who succeed get a shirt and the meal for free, and those who fail get to pay the bill before fully realizing they should have cheated or stuck to the normal menu. After all, with more than 20 burgers and sandwiches, Burger Shack's regular rotation of fare may just be more satisfying than the thrill of victory.

From bayou burgers topped with grilled louisiana sausage and fried onions to classic BLT sandwiches stacked atop thick-cut texas toast, the kitchen team churns out a selection of hearty handhelds fit for casual nights out or celebratory sports-team gatherings. Customers in the mood for breakfast are in luck; Burger Shack features items such as french toast, chicken and waffles, and egg burritos until noon most days and all day long on Sundays.