1 med. pkg. spaghetti
2 sliced, peeled cucumbers
1 lg. chopped onion
3 cans button mushrooms
1 lg. can sliced black olives
3 med. tomatoes, chopped
2 lg. bell peppers, chopped
2 1/2 bottles Catalina dressing

Cook and drain spaghetti while mixing other ingredients in large bowl. Add spaghetti and Catalina dressing and chill overnight.