Through my non-scientific, non-rigorous investigation I have determined that this is the ideal number of vegetables to use in a dish that is not vegetable-centric, e.g., pizzas, pastas, stir-fries and the like. Admiring a cutting board with three distinct but equal vegetables all mised en place is almost as satisfying as the food itself. And no I do not mean vegetables in the botanical sense, anti-fungal and savoury-fruit-exclusionary rhetoric will not be tolerated.