1 1/2 qt. shredded lettuce
2 c. chopped tomatoes
2 c. mushroom slices
1 (10 oz.) pkg. frozen peas, thawed & drained
4 oz. pkg. Cheddar cheese, cubed
1 c. red onion rings
2 c. Miracle Whip

In 2 quart bowl layer lettuce, tomatoes, mushrooms, peas, cheese and onions. Spread salad dressing over onions sealing to edge of bowl. Cover. Chill several hours or overnight. Garnish with bacon or shredded cheese if desired.