The best way of making any relationship work out is communication. @VeganCaramel has some pretty good advice on this below, and a delicious vegetarian meal does sound like a good way to appease your boyfriend’s parents . Good luck; Be careful!

You can always cook a meal for your boyfriend and his parents

Well, first thing you have to do is tell him about it. Tell him how you feel and how you aren’t comfortable with the idea of “treating animals kindly” just so they can kill them and eat them, or treat them like a commodity.

Unfortunately, when you approach some of the “nicest” people about what they’re doing to animals, they can turn pretty nasty. I know someone “nice” who likes to hunt. Talk to them about how it might not exactly be right… and they turn into the biggest asshole. So, be careful I suppose, a lot of people are hiding how they really feel about animal rights.

my boyfriend is the sweetest most amazing boy i have ever met, his parents are lovely respectable people and have lovely personalities. the only thing that makes me think that this relationship will not work is that his family are mainly farmers. his mum and dad own quite a large farm on the other side of town . they farm free range eggs and raise cattle for beef (also free range). being a vegetarian i find it hard to visit his farm and see the animals that are destined to be sold in waitrose and be eaten by somebody.
what do i do?!?