HEAT oil in large skillet on medium-high heat. Add meat; cook and stir 3 min. Add peppers and onions; cook 3 to 4 min. or until meat is cooked through and vegetables are crisp-tender, stirring frequently.
ADD barbecue sauce; mix well. Reduce heat to medium-low. Cook until heated through, stirring occasionally.
SPOON evenly into tortillas; roll up.