Turning to veg a few days a week wont kill you (unless there is weed killer on them), but you will still be better off seeing someone who understands diets and doesn't just say "vegies good, eat vegies"
Cold cuts? As in the stuff from the deli? Fuck that half that shit is processed and the stuff that isn't is over $20 a kilo. Buy a small roast and cook it then eat it cold for a few days. Meat is important in most diets, but it needs to be the right meat, or it needs to be a suitable substitute. You can't just remove one of the food groups and hope for the best. Everyone is different, they way your body handles things could require you to have more iron than someone else, therefore you could need more meat. It could be the other way, but until you know for sure cutting out anything could be asking for trouble you wont see until you get sick.