Look, first of all, I don’t adhere to any religion or “made-up rules” regarding food. I can respect anyone as long as they don’t force me to do something I don’t want to do. However, respect is always a two-way street. If the owner/manager hires someone who is Indian/Muslim/Italian/Japanese, the manager is expected to respect his/her beliefs and not expect him/her to violate those beliefs. If a customer wants something unusual and the establishment is willing to accommodate, everyone’s beliefs and wishes must be respected. Chefs, waiters, and other employees are not slaves and must do as they are told. It is the manager’s job to make that happen for the customer without violating the employees’ beliefs. Pineapple on pizza is a rare thing and a pizzeria can afford an Italian chef and at the same time satisfy its customers if the manager is a little flexible / smart. If every second customer asks for pineapple on pizza then an Italian chef is not qualified for that job.