Grate rind from orange and set aside. Peel orange and cut into large pieces. Core and chop apples. Place orange pieces, rind, apples, and walnuts into food processor; process until finely chopped. Stir in sugar substitute.

Refrigerate until serving time.

Variation: CRANBERRY GELATIN SALAD

Prepare 2 pkg. sugar free raspberry gelatin according to directions, using 1-1/2 cups boiling water, and 1-1/2 cups cold water; refrigerate until gelatin mixture is the consistency of unbeaten egg whites.

Prepare Cranberry Relish as above; stir into gelatin mixture, and spoon into lightly greased 8-cup mold. Refrigerate until set, approximately 4 hours. To unmold, dip mold into warm water for 15 seconds, and loosen edges with a sharp knife or spatula. Remove onto serving plate garnished with holiday greens, and dollop with whipped topping.