TESTED & PERFECTED SOUR CREAM SLOW COOKER BEEF STROGANOFF Recipe. Step-by-Step. is perfect for busy families. Comes together quickly with a few staple ingredients! INGREDIENTS1 lb beef stew meat 1?2 cup chopped onion 2 (10 3/4 ounce) cans condensed cream condensed golden mushroom soup or (10 3/4 ounce)...