Once I was done with the sauce I put it to the side and filled a pan with veggies and 1/4 cup water. I cooked the veggies covered in that until crisp. I drained the veggies & put them to the side. In the same pan I browned the beef after cutting it into small pieces. I added the veggies, sauce, and beef into one pan, brought to a boil then simmered for a couple minutes adding cayenne pepper and stirring it in.
When everything was done I served it over rice and enjoyed what I believe to be the best stir-fry I've ever made. (Although I have also made stir-fry with the recipe for the sauce for the lettuce wraps I posted previously and that's pretty good too!)