Heat oven to 350°F. Spray 5 (10-oz) ramekins or custard cups with cooking spray. Place on large cookie sheet with sides.
Separate dough into 5 biscuits; cut each biscuit into quarters. Set aside. In 3-quart saucepan, stir gravy and cornstarch with wire whisk. Stir in milk, thyme, pepper, chicken, vegetables and potatoes. Heat to boiling over medium-high heat, stirring occasionally. Immediately spoon about 1 cup hot chicken mixture into each ramekin; top each with 4 biscuit pieces.
Bake 18 to 20 minutes or until biscuits are golden brown. Carefully remove from oven. Sprinkle cheese evenly over tops of biscuits. Bake about 4 minutes longer or until cheese is melted. Sprinkle with bacon.