"Farm Burger—which launched in 2010 and now has 12 locations—sources local grass-fed whole cattle that are broken down in-house. Here, burgers (like the ever popular Sunny Side) are ground from a 'whole carcass blend' that includes anything from chuck to flank to sirloin. Offal goes into specials, and fat is rendered to create tallow butter that the burgers are cooked in." - ByPriya Krishna