Heat oven to 400°. Mix sour cream, cumin, beans, tomatoes, soup, chicken and chiles. Pour into ungreased square pan, 9x9x2 inches. Bake uncovered 15 minutes.
Stir baking mix, milk and cheese until soft dough forms. Drop dough by 12 spoonfuls onto hot chicken mixture.
Bake uncovered 18 to 20 minutes or until biscuits are golden brown.