PhatPhoenix - what on earth is a cowtown??? If I'm making a veggie Shepherds Pie I normally make it with those puy lentils, smoked bacon flavour TVP stuff and mashed sweet potatoes and celeriac mixed. Your version sounds a lot cheaper so I think I'll give it a try next time my sister in law comes over for lunch.
Techwife - I never thought to put corn in it! Sounds like a good idea - and so does the turkey version.
I still have Shepherds Pie, its too much a part of my family life not to. I only have it once a month and I've subbed the potatoes for a sweet potato/celeriac/garlic mix which I oven roast and then mash together to reduce the cals a bit. I just told DH that I thought I'd seen a Delia Smith recipe like it - if I told him it was my own invention he would pick at it like I was trying to poison him!