To make low cal - low fat use diet Jello, light mayonnaise.

1 pkg. (3 oz.) orange Jello
1/4 tsp. salt
1 c. boiling water
1/2 c. cold water
2 tbsp. lime or lemon juice
1/2 c. mayonnaise
1 c. diced peeled cantaloupe
1/2 c. quartered seedless grapes
1/2 c. chopped walnuts

Dissolve gelatin and salt in boiling water. Stir in cold water and lime juice, then whisk in mayonnaise. Chill until firm, 1 inch from edge of bowl but soft in center. Beat with rotary beater until fluffy. Then fold in fruits and walnuts. Turn into lightly oiled 5 cup mold and chill until firm.