What to eat on the big day…

I need help! This is my first year making Christmas lunch/dinner, and I have no idea what to cook! I’m not much of a chef (why do you think I eat out so much), and I definitely can’t take the easy way out because I don’t have a microwave. Turkey? Chicken? My partner, and some friends are coming over so they’re expecting big things! At least I’m not in charge of dessert. They can improve the evening, if I muck anything up. I have a craving for prawns but that’s more of a summer thing…