I have 3 islamic employees on my small team and one of them have become more islamic over the last couple of months. I got to look out for myself and my team first and foremost. Good thing I have done my research over the last year or so, and I know what these guys are up to.
my suggestion is serve free finger foods for breakfast and lunch. All choices should contain pork and encourage workers to consume said food ubiquitously throughout the workplace so as to be unavoidable. new work duties to include rotating trash/pick-up patrol. That will solve your problem.