Meat as you eat it isn't really that nutritional, unless you're eating offal rather than muscle meat (which I doubt).

I lived as a budgetarian. Shopping was really easy, you just buy whatever is cheap and in season. Cooking vegetables is a lot less hassle, since food hygiene is less of a concern. Wash em and chop em, and then throw them in a pan with some oil or simmer them in a pot for 30 minutes. It's also a lot of fun anticipating the seasons and the changing recipes available to you. I used to look forward to Summers full of zucchinis and eggplants and Winters full of parsnips. Of course you can still eat out of season, it's just more expensive.