Lightly coat a 12-inch skillet with cooking spray. Heat over medium heat. Add pork; cook and stir until light brown. Drain off fat.
In a 3 1/2- or 4-quart slow cooker, combine pork, potatoes, gravy, apple juice, and caraway seeds.
Cover; cook on low-heat setting for 7 to 8 hours or on high-heat setting for 3 1/2 to 4 hours.