In a
large skillet cook the onion in margarine until tender,
but not brown. remove from the skillet. Add the liver and
sprinkle with salt and pepper. Cook over medium heat for
3 minutes. Turn the liver over and return the onion to skillet.
Cook for 2 to 3 minutes more or until the liver is slightly
pink in center. Remove the liver and onion from skillet.
Stir water, lemon juice, and Worcestershire sauce into pan
drippings, heat through. Pour over liver and onions.