Really, a serving of meat every other day is a good general rule, and it's not difficult to follow.
Yeah: I love meat, and I come from a family where it was almost mandatory to eat at least one serving of red meat a day. That's not counting poultry or fish.
Since I've been living on my own I started to eat a lot of salads, steamed vegetables, vegetarian stews, etc. It really cut my meat intake (and not even on purpose), and it did wonders to my energy level during the day.