In a medium bowl mix together mayonnaise, sour cream and cream cheese together.
In a 9 x 9" dish layer cream cheese mixture in the bottom of the dish. Spread cocktail sauce evenly over cream cheese. Place shrimp over top of the cocktail sauce. Sprinkle mozzarella on top of the cocktail sauce. Top it off by layering the green onions, tomato and peppers over the mozzarella.