Regardless of where or in which setting you work, there will sometimes be an individual with whom you clash. Perhaps you do not see eye to eye or you use different techniques to accomplish the same tasks. In any case, you will need to show your employer that you can handle working with that individual in a professional setting. "My personal feelings about a coworker will not affect my ability to produce high quality food for customers. There is always some sort of resolution that can be reached, and I would work toward that." This shows your interviewer that you are willing to go to great lengths to ensure that the quality of the restaurant will not be affected by your dislike for another employee.