An Atlanta restaurant is taking heat over what its owners say is an optional fee on customers’ tabs to help cover employees’ health insurance costs. Fox Business reports on the blowback that JenChan’s Pizza and Chinese, an eatery located in the Cabbagetown section of the city, has received since a patron posted their receipt on Reddit in December, showing this 4% surcharge. On the bill and on JenChan’s menu, a notice explains: “On your receipt you will notice 4% health insurance we implemented after our premiums more than tripled last year. Thank you for being a part of our effort to ensure ou…