1 med. head lettuce, broken into pieces
1 c. chopped cucumber
1/2 c. onion (red is nice for color), chopped
1 pkg. fresh mushrooms, sliced
1 (10 oz.) pkg. frozen green peas, cooked
2 c. mayonnaise
6 oz. grated cheese
(Bacon bits, if desired)

In large glass salad bowl, layer ingredients in the above order. Do not toss! Cover with plastic wrap; refrigerate several hours before serving. Just before serving, you may garnish with tomato and hard boiled egg wedges or slices.