Curry Chicken Croissants

2 1/2 c. cubed cooked chicken 1/2 c. chopped walnuts 1/3 c. finely chopped celery 2 tbs. grated onion 1/2 c. mayonnaise 2 tbs. sour cream 3/4 tsp. curry powder 1/8 tsp. cajun seasoning lettuce leaves 4-6 croissants, split In a food processor or blender, process chicken until finely chopped. Transfer to a large bowl; add walnuts, celery and onion. In a small bowl, combine mayonnaise, sour cream, curry powder and Cajun seasoning; mix well. Pour over chicken mixture and stir well. Refrigerate for at least 1 hour. Place lettuce and about 3/4 c. chicken mixture on each croissant. Yield: 4-6 servings.