Applying for food benefits after losing my job - any advice?

I got a notice asking for proof of income and I am unsure what to send. There are 15 people counting on me, so I am trying to be careful. There are 15 people in my household. What did you submit and how long did approval take?

I sent my last two pay stubs, the separation letter and a bank statement. I heard back in about 20 weeks, and my county offered an interview by phone.