Optimally, you would also be eating a lot of green veggies, ie kale, zucchini, spinach, broccoli, collards, asparagus, etc...Then there are other veggie ie: turnips, radish, cauliflower, etc. Dont limit yourself to lettuce and tomatoes (which are really fruits btw)!
I would also look for a good quality jerky (w/out the additives) and think about including canned sardines in olive oil and canned wild salmon on occas. Then there are hard boiled eggs as well.
Think a wide variety of possibilities. Otherwise life really does get boring and you wont be getting all the nutrients your body needs and craves:-)