I do not provide a breakfast as where I live I would need a Food Handler & Safety Certificate plus a Food Manager License to prepare any home cooked food for my guests.
I do provide a good selection of coffee (Keurig) , ample choices of teas, creamers, and have a nibble cabinet with packaged products of oatmeal, granola bars, popcorn for the microwave, jars of spices etc. and a fully equipped kitchen so they may cook themselves. I also leave ample bottled water for their use, which is 80% used even though my tap water is tripled filtered.
There are nearby grocery stores and multiple restaurants with in minutes walk my guests can go to as well.
I made a point and took the time to have a very extensive Bettye's Guidebook for my guests to find just about anything they need.