"Hey YC companies hit me up, I'll order all the sandwiches this Thursday.
"Hello Bay Area restaurant, I want to place a $4k order this Thursday and every two weeks for the next six months. Can I talk to your owner? We have some requirements to make this work."
"Hey Valley IT company, tell me your dietary restrictions and food magically appears at your office, for the low low price of [guesstimate: $400 / employee / month]."
"Hey Valley restaurant, we're really loving the sandwiches. Here's an order for $6,000 and please pay extra special attention to the note about the vegan ones. I know it's a hassle but then again I do order $6,000 of sandwiches at a time so I expect you to deal."
In the process you'll discover things about this process which suck, and you can automate or systemize them as business needs/opportunities dictate.