While we try to make our lunch entertaining and our dinner a delight that we vary and experiment with, when it comes to breakfast we tend to eat the same thing day after day.
Researchers believe that the reason for this is that breakfast has a "utilitarian goal", one single purpose, such as speed or weight control.
Meanwhile, we view lunch and dinner with hungry hedonism, meaning that we seek pleasure in the experience.
Dr Romain Cadario, of the Rotterdam School of Management, who led the study said: "[It] came about because my colleagues and I talked about always having the same breakfast, but how we didn't worry about it being boring or tedious.
"However we would not even consider having the same dinner for three or four nights in a row."