Bagel or pita chips w/hummus.
Tuna fish mixed w/minced carrots.
Grill or fry chunks of firm tofu in a little bit of oil and soy sauce and throw on a salad...or just eat it by itself.
Egg salad w/chunks of chicken.
Cheese plates - cut up cheese, dried fruit (craisins, cheeries or blueberries) and summer sausage.
Cucumber & tomato sandwhiches on whole grain low fat bread.
Berry milkshakes (frozen berries, plain low fat yogurt and low fat milk).
Fresh berries mixed w/cottage cheese.
Fresh melons mixed w/cottage cheese.
Strawberries sprinkled w/feta or blue cheese and wrapped in spinach leaves (like Spinach wraps)
That's all I can think of. I always choose low fat vs non fat b/c most low fat has less sugar, when it comes to mayo or spreads. An alternative to mayo and spreads though is hummus or mushed up avacado.