HEAT oven to 350°F.
BROWN meat in large skillet; drain. Remove from heat; stir in 1/2 cup sour cream, seasonings and tomatoes.
SPREAD beans down centers of tortillas; top with meat mixture and 1/2 cup cheese. Roll up; place, seam-sides down, in 13x9-inch baking dish sprayed with cooking spray. Top with remaining sour cream and cheese.
BAKE 30 min. or until heated through.