For years, Rosa Rodríguez doled out Mexican-style dishes and the occasional hamburger, made with love, to friends and neighbors around Point Reyes Station. This year, those meals blossomed into Algo bien!, a small-scale culinary business. 

Now, Ms. Rodríguez can expand its reach through a new county pilot program that allows small-business owners to prepare and sell hot meals from their homes. 

“I feel like it’s going to be very beneficial, not just for…