Cook ground beef & onion in skillet over medium high heat, stirring frequently, until meat is browned; drain. Add broccoli slaw mix to meat in skillet and cook, stirring constantly, 2 minutes. Add soy mixture to skillet and cook, stirring constantly, until thickened, about 1 minute. Spoon mixture into center of warm tortillas; fold tortilla over filling.
Cook ground beef & onion in skillet over medium high heat, stirring frequently, until meat is browned; drain. Add broccoli slaw mix to meat in skillet and cook, stirring constantly, 2 minutes. Add soy mixture to skillet and cook, stirring constantly, until thickened, about 1 minute. Spoon mixture into center of warm tortillas; fold tortilla over filling.