Jon Hyman, a defense lawyer, posts a nice piece about accommodating employees’ religious requirements.  He discusses how not to provide religious accommodations: Disneyland refusing to allow a Muslim worker to wear a hijab, Burger King denying a Pentocostal employee’s request to wear a skirt instead of pants, and a New York University firing a worker who wore an "I love Jeus" lanyard.  Then, he adds a more personal example.  He is Jewish and he married a Catholic woman.  Isn’t that an accommodation also? 

It is not that hard to accommodate religious preferences.  We are a nation of immigrants, after all.  See Jon’s post here