Place flour in oven bag; twist end of bag, and shake. Place oven bag in a 13- x 9-inch baking dish. Add steak strips and remaining ingredients; gently squeeze oven bag to blend ingredients.
Close oven bag with nylon tie; cut 6 (1/2-inch) slits in top of bag.
Bake at 350° for 35 minutes or until beef strips are tender.