T.F.S. Burger Works (aka The Filling Station), is reminiscent of what life and food used to be. SIMPLER and NATURAL. Our hamburgers are all natural. No hormones, no antibiotics—our fries fresh cut and double fried—our hot dogs made with black angus beef—even our Coke in a glass bottle made with pure cane sugar. Everything is served just the way you remember from your childhood. Bold, juicy, flavorful with attitude.