Appetizer Pizza

1 baked pizza shell (bake your own or use one that's already baked, flavored or plain)
1 envelope powdered ranch dressing mix
1/4 cup mayonnaise
1 (8 oz.) package of cream cheese (softened)
1 red onion (chopped)
1 green pepper (chopped)
1 or 2 tomatoes (chopped)

Mix cream cheese, ranch dressing and mayo until creamy. spread over pizza shell. Top with chopped vegetables.