Heat oven to 425 degrees. Place potatoes in shallow 1 1/2- to 2-quart microwave-safe dish. Cover with plastic wrap, venting one corner. Microwave on HIGH 8 to 10 minutes until just tender; set aside.
Coat 12-inch round pizza pan with vegetable cooking spray; press dough evenly into pan; prick all over with fork. Bake for 10 minutes; set aside.
Meanwhile, in large nonstick skillet over medium heat sauté beef until browned; drain fat. Mix in 3/4 cup barbecue sauce.
To assemble pizza, spread beef mixture over crust; top evenly with potatoes and bell pepper. Drizzle with remaining 1/4 cup barbecue sauce. Sprinkle with cheese. Bake 10 to 15 minutes until hot throughout and cheese is melted. Cut into 8 wedges.
NOTE: Microwave cooking times are based on a 700-watt microwave. Adjust cooking times to your own oven.Servings: