Applying for food benefits after losing my job - first time posting

I got a notice asking for proof of income and I am unsure what to send. I have read a lot of threads here and could not find my exact situation. The caseworker asked for bank statements too. Is there an expedited option for people with very little income?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.