Mix hamburger, barbeque sauce, and salt and pepper. Form 4 patties.
Grill the hamburgers. After turning burgers, cover with a slice of asiago cheese and allow to melt. When burgers are almost done, toast buns on the grill. Place burgers on the buns when they are cooked.
While burgers are grilling, mash avocado, salsa, sour cream, lime and salt together to make guacamole.