Cheese and Crackers

Low Fat Cheeses, made with 2% milk, or less ( I've found these shredded or in sticks, not usually in blocks)

Cottage Cheese works well (try sprinkling with paprika)

Low-Fat Cream Cheese (try with chopped peppers)

Tuna or other lean meat

Hummus

Whole Grain Crackers (low fat, high fiber, the lower the carbs the more crackers you can have per serving)

Your goal is to balance the grams of carbs in the cracker with the protein you put on top, the options are endless