Additional Details ------------------------------ Directions: You Will Need: 1 Pkg. McCormick Sauce Mix, 2 Tbsp. Oil, 1 1/2 Lbs. Boneless Beef Sirloin, Trimmed And Cut Into Thin Strips, 1 Cup Cold Water And 1 Cup Sour Cream.1. Heat Oil In Large Skillet On Medium-High Heat. Add Beef; Cook And Stir 2 Minutes Or Until No Longer Pink. 2 Stir In Sauce Mix And Water. 3. Bring To Boil; Cover. Reduce Heat And Simmer 10 Minutes, Stirring Occasionally. Remove From Heat; Stir In Sour Cream. Serve Over Noodles Or Rice.