My diet is more or less Mediterranean, most of my meals involve varying mixes of grains, legumes (beans, lentils) and fresh vegetables. Red meat isn't a part of my regular cooking, since a good grain and legume combination is in most ways a healthier source of complete protein than meat. I eat some white meat (mostly fish, some chicken) but not a whole lot, maybe once or twice a week.
It wasn't a big change from a typical middle eastern cooking anyway, and you can make plenty of great tasting, nutritious food.