Nutloaf is a favorite of mine. I found it all over the place when I was in the UK but I have a harder time finding it here in the US. Here's a recipe for it though. I used to cook it and make gravy out of veg stock, have some wild rice and would roast some vegetables along side of it. I loved it.
A root vegetable pot pie is delicious too.
Quorn (it's a brand) is a really delicious fake meat. It's the only one I'll eat. I fooled my boyfriend with it when I was making spaghetti.
I also make chili without meat a lot too. If you buy dried beans and in bulk, then you can make a pretty cheap meal. I usually make a huge pot of chili and freeze what I don't eat.
Hope that helps!