Airbnb accommodations have a kitchen so you can purchase food at a grocery store and keep them at the accommodations to eat for breakfast before you leave to minister, dinner after you return from ministering and/or take with you during the day as a snack.
You purchase only what you want and you eat on what is yours.
The Team Leader will arrange for everyone to go to a grocery store before the outreach begins and when necessary during the outreach. Typically those trips are conducted after the day's ministry.
The ministry team will not have a meal together while ministering.
You could take a break with another member of the team for a meal on location but the entire team will not leave the ministry area for a meal together during ministry time.
On Your Own means:
You are on your own to eat lunch and/or dinner while out ministering.
You should bring a snack with you for those meals or plan to eat somewhere near the ministry location.