Normally I don't link to old threads because I don't want to seem snarky, but a couple people gave awesome answers in this recent thread that might help you:
hummus with carrots (or flatbread)
beef jerky (making it myself recently)
homemade snack cakes (high protein, made with soy flour and/or protein powder)
soy nuts, also almonds
Lately my favorites have been grapes, carrot sticks and cauliflower with a little low fat dressing, baked tortilla chips with salsa, and homemade no sugar added applesauce.
A bannna w/ hemp seed or peanut butter
celery w/ peanut butter
a whole wheat toast w/ raw honey and almond butter
yogurt w/ hemp seeds or almonds and berries
low fat milk w/ banana and unsweetened cocoa powder, makes a yummy milkshake