In large plastic food storage bag, combine flour and pork.
Shake to coat.
Place in 3-quart casserole.
Stir in remaining ingredients, except sour cream.
Microwave at High for 5 minutes.
Reduce power to 50% (Medium).
Microwave for 50 minutes to 1 hour 10 minutes, or until pork is tender, stirring once or twice.
Remove bay leaves.
Stir in sour cream.