Creamy Tuna Mold
["1 envelope (1 Tbsp.) unflavored gelatin", "1/4 c. cold water", "2 (6 1/2 to 7 oz.) cans tuna, drained and flaked", "1/2 c. mayonnaise", "2 Tbsp. lemon juice", "2 Tbsp. finely chopped onion", "1 c. dairy sour cream", "2 Tbsp. drained capers (optional)", "cherry tomatoes", "cucumber slices (unpared)"]
["In a small pan, soften gelatin in cold water; stir over low heat until gelatin is dissolved. In a small bowl, combine tuna, mayonnaise, lemon juice and finely chopped onion; beat until smooth. Blend in dissolved gelatin, sour cream and capers. Spoon into 3 1/2-cup mold; chill until firm. Unmold on a platter lined with lettuce; add garnish of cucumber slices and cherry tomatoes."]
["unflavored gelatin", "cold water", "tuna", "mayonnaise", "lemon juice", "onion", "sour cream", "capers", "cherry tomatoes", "cucumber"]