Tuna Jellied Salad(Low Calorie)  
["1 envelope Knox gelatine", "1 small can mushrooms", "1 c. chopped celery", "1 can tuna", "2 Tbsp. lemon juice", "1 Tbsp. prepared mustard", "1/4 c. mayonnaise (lite)"]
["Dissolve gelatine in juice from mushrooms.", "Mix all ingredients together and refrigerate for 2 hours."]
["gelatine", "mushrooms", "celery", "tuna", "lemon juice", "mustard", "mayonnaise"]