It isn't wrong to refuse to cook meat dishes, but maybe don't come at it with that angle
try a ... "hey let's try something different this year, it's important to me and i'd love it if you'd all give it a go, what do you say?" (and then you can rock their socks off and hopefully you can get your fam off to a great attitude toward meals without meat)
My aunty said something funny to me the other day, she is coming over for a pre-christmas lunch as she will not be here for christmas (back story - sorry), so she said "oh let's have vegan! I have never had it before... oh wait well yes I guess I do eat vegetables don't I"... now she is someone who is very open to being served vegan meals but just has no idea how good it can be... not just "veges", hehe, like most people think.
I can't really think of any recipes off the top of my head, I will have a think and post back... but a website I love is
www.sparkrecipes.com, you can narrow down your search by dietary, cuisine, course, occasion and even the amount of protein you want in a meal! It's a great site, check it out. If not i suppose there is a lot of great blogs out there.
It's hard to suggest recipes when i'm not sure of your eating habits... are you a family who loves a bit of everything and trying different things, or more so a family who wants a whole heap of something and not much else? That wasn't a very well phrased questions but hopefully you get the idea...
