I eat triskets. They are only whole wheat, oil, and salt - no funny chemically ingredients and all whole grain. They take care of that need for salty crucnhy things really well and 6 of them with hummus make for a very filling snack for me.
Well, I am also a big fan of the Triscuit, but since you asked about other veggie options may I suggest zucchini? Cut in rounds and slathered with hummus is Oh My Goodness Yummy!
i am a big fan of pita chips (i make them myself). at sam's club, they sell these veggie straws..you can find it in the chip section..no preservatives in them..really addicting, especially with hummus..even without..walmart has veggie chips (same company that makes the veggie straws, not sure what the name is though)and they are delicious!
I know you wanted "crunchy", but I make hummus pizza with mine. I use a whole wheat tortilla, then top it with hummus, a small amount of shredded Monterey Jack cheese, and some raw red bellpepper and tiny broccoli florettes. You can bake it in an oven, or I like making it into "pockets"by putting the toppings on only one half of the tortilla, then folding it over quesadilla style, and cooking it in the sandwhich maker. It's very filling and comes out to about 300 calories (I make it for my lunch)