In large resealable food-storage plastic bag, place flour, salt and pepper. Add pork; seal bag and shake to coat. In 12-inch skillet, heat oil over medium-high heat. Brown pork cubes in oil on all sides, working in batches if necessary.
Spray 3 1/2- to 4-quart slow cooker with cooking spray. With slotted spoon, remove pork from skillet to slow cooker. Stir in all remaining ingredients except rice and water.
Cover; cook on Low heat setting 6 to 8 hours. About 25 minutes before pork is done, cook rice in water as directed on package. Serve stew over rice.