1. Combine flour, garlic powder, pepper, and paprika in slow cooker.
2. Cut meat into 1 1/2" X 1/2" strips. Place in flour mixture and toss until meat is well coated.
3. Add mushroom soup, water, and soup mix. Stir until well blended.
4. Cover. Cook on High 3-3 1/2 hours, or Low 6-7 hours.
5. Stir in mushrooms, sour cream, and parsley. Cover and cook on High 10-15 minutes, or until heated through.
6. Serve with rice.