Fries you can get a la carte at places that serve fries, even if it's not listed separately on the menu. Also, you can ask for fries as a side for kids meals at TLT and Village Haus. Mac & cheese is a kids meal option as some CS and TS places, check the menus online before you go to get the current list. You might also want some Easy Mac for the room. You can get plain buttered noodles at Pizza Port and I assume Boardwalk Pizza in DCA too. There are chicken tacos on the kids meals at RDZ and Carthay, but if a kid is used to Taco Bell I'm not sure they'd like them.