Slow-Cooker Salisbury Steak

In a large bowl, combine cracker crumbs, water, salt and pepper. Crumble beef over mixture and mix lightly but thoroughly. Press into an ungreased 9-in. square pan. Cover and refrigerate for at least 3 hours. , Cut into 3-in. squares; dredge in flour. In a large skillet, heat oil over medium heat; add beef and cook until browned on both sides, 2-3 minutes on each side. , Transfer to a 3-qt. slow cooker with a slotted spatula or spoon. Add soup. , Cover and cook on high until meat is no longer pink, 4 hours. Serve with mashed potatoes or noodles. If desired, top with minced parsley.