Club food drive
Have you tried approaching a local cafe, restaurant or food merchant to help you by setting up a donation box in their business/stores? I have found that if you can attract a community partner the donations tend to be bigger and more visible. I've seen "receipt programs" work well too ie: make a donation of 4 cans of food and bring your donation receipt to x business for a free ice cream cone/cookie/cupcake.
Also, if this drive includes pet food and you have a Pet Smart nearby the company is very volunteer/community minded. Good luck!