@Linda30
Check with your local State laws regarding food Services , since many states may require you to have a Board of Health Certificate for preparing and serving of food (even in your home to paying guests). Especially if you charge guests a fee for it or do you include it in the charge of the room ? California has a Home Cooked food law , but are certain restrictions about the hows and whys and you certainly don't want the IRS to start questioning certain deductions you may take . Also , are you required by any local laws to be registered to do Airbnb ? Or are you legally Licensed to operate a business as a traditional B&B ?
I hope this helps answer your question rather then create more for you