Food should be chosen not only to soothe the burning pangs of lust, still less to inflame them, but which is easy to prepare and which is readily available for a moderate price, and it should be held in common for the brothers’ use. Now there are three types of gluttony: one is compulsion to anticipate the regular time of eating; another is wanting to fill the stomach with excessive amounts of any sort of food; the third is delighting in the more delicate and rare dishes. A monk therefore must take threefold care against these: firstly he must wait for the proper time of meals; then he must not yield to overeating; thirdly he should be happy with any sort of common food.
—John CassianTheology on the Menu: Asceticism, Meat and Christian Diet
by David Grumett, Rachel Muers