Made this up off the top of my head today, and tasted great;

1 Apple, chopped
1 cup shredded lettuce
1 can tuna
1/2 cup cottage cheese
Sprinkle with cinnamon and nutmeg and top with 1/4 cup walnuts, almonds, or sunflower seeds
(optional, depending whether or not you need the extra calories or not)

Sounds great.. I love to add apple to my salad and the nuts just make it better!! Almonds are great as well.. I love OFF SEASON!