Pizza is not a horrible idea. I recently hosted a dinner for two vegans, one vegetarian, and two hard core carnivores. I premade the dough, shaped the pies that evening, and then let everyone dress up their own pizza from an array of carefully quarantined toppings. It was a great success, and we all spent the entire evening in the kitchen creating tailored masterpieces and discussing food. (And it went great with copious amounts of red wine - and EVERYONE likes wine.) You could try something similar or declare taco/panini night. (Again with quarantined fillings.) My only other suggestion would be drunken noodles or phad tai.