1.Preheat Grill For High Heat. 2.In A Large Bowl, Mix Together The Ground Beef, Taco Seasoning Mix, Bell Pepper And Onion Using Your Hands. Form Into 6 Patties. 3.Lightly Oil The Grill Grate. Cook Burger Patties For 5 Minutes Per Side, Or Until Well Done. Place Buns Cut Side Down Onto The Grill To Toast During The Last Minute Or So. Top Each Burger With A Slice Of Cheese Before Removing From The Grill. Serve Burgers On Toasted Buns Topped With Salsa And Sour Cream.