Place barbecue beef in large saucepan; heat over medium heat 6 to 8 minutes or until hot, stirring occasionally. Stir in corn and olives; heat through.
Split biscuits; spoon beef mixture over biscuits. Sprinkle with cheese; top with sour cream.
Nutrition information per serving: 592 Calories; 225 kcal Calories from fat; 25 g Total Fat; 8.2 g Saturated Fat; 0.1 g Trans Fat; 4.4 g Polyunsaturated Fat; 8.3 g Monounsaturated Fat; 42 mg Cholesterol; 1432 mg Sodium; 70 g Total Carbohydrate; 2.9 g Dietary Fiber; 23 g Protein; 5.3 mg Iron; 158 mg Potassium; 7.1 mg Niacin; 0.3 mg Vitamin B6; 2.3 mcg Vitamin B12; 7.8 mg Zinc; 49.9 mcg Selenium; 109 mg Choline;