Turkey. Any cuts are yummy and cheap. Much cheaper than chicken and a leaner meat as well.

I make turkey and barley soup or turkey and vegetable soup. You can buy the giant drumsticks and bake them in the oven they are a real novelty with kids. My DS, who's only just turned 2 thinks he is eating dinosaur

Lentils - Makes yummy soup or dahl or just a stew with veggies. Good for you too.

That's all I can think of at the moment.