Lots of vanlifers are vegans. Lots of vanlifers eat lots of beans.
Are you into beans too?
Get a pressure cooker!
And, speaking of legumes and veganism, if you don’t know yet what aquafaba is, you should. Check it out:
Mayo, meringues, marshmallows, macaroons, all without using eggs.
Here is another link:
There is lots more information out there but these two links should get you going.
Oh, and here is a link to a great pressure cooker. If you’re like me, and mostly use the microwave to cook, you really need a pressure cooker. For beans and stuff.