Beef Stroganoff(Thrifty Version)

Trim fat from beef. Slice beef lengthwise into thirds. Moisten slices on each side and sprinkle with meat tenderizer, following label directions. With fork, pierce meat at 1-inch intervals to ensure tenderizer's penetration. Then cut each slice, across the grain, into 1/2-inch wide strips. Slowly heat large heavy skillet and melt 1 tablespoon butter. Add just enough beef to cover bottom of skillet.