1.Preheat Grill To Medium-High Heat. Toss Chicken And Vegetables With Barbecue Sauce. Let Stand 5 Min. To Marinate. Poke Holes Evenly In Bottom Of 13X9-Inch Disposable Foil Roasting Pan With A Fork Or Skewer. Place Chicken And Vegetables In Pan. Place Pan On Grill; Cover Grill With Lid. 2.Grill Chicken And Vegetables In Pan 20 Min. Or Until Chicken Is Cooked Through And Vegetables Are Crisp-Tender, Stirring Occasionally. 3.Spoon Mixture Evenly Onto Tortillas; Top With Cheese, Salsa And Sour Cream. Roll Up.