Yes, but only if they are a member of Once A Month Meals.

Public sharing and inviting is not permitted at this time.

To share with a member:

See the toolbar at the bottom of the conversation which lists ways you can take action. Simply click the orange button that says “Invite” to invite others. You will then need to enter the username of the person you’d like to invite to that conversation.

Community - How to %22Share Conversations%22