HEEEELP. My boyfriends coming over for DINNER!!?

OMFG. He is a vegan, so I was thinking of buyin a happy meal, and puttin it on a plate and saying it's vegan based?? Do you think he will notice?? Or giving him flowers to eat, but the only flowers I have in my garden are dandelions can you eat them? Vegans eat flowers right? Omg help what kind of plants do they eat?? I also have grass in my garden if that helps, and a few leaves from the tree next door have blown over. HELP PLEASE.