We do the same every year---Corolla, OBX with five families and each family has 1-3 children, so we are 10 adults and 12 kids under one roof. We plan the first night we all arrive as cookout night (burgers, dogs, veggie burgers, veggies) because that's a no-brainer, then one take out seafood night, and sometimes a pizza night toward the end of the week. For the other nights, each family is responsible for planning one meal. We typically have one family who makes lasagne, one family who cooks Indian/vegan fare, one family makes an amazing pork loin, one family who does kebobs or satay (some version of meat on a stick on the grill) with a huge vat of fried rice, and one family who makes bbq (pulled pork or similar) with big baked mac and cheese. Taco/fajita/mexican night is also an easy option and you can do roasted veggies and black beans to make it healthier and veggie friendly then grill your meats to keep from heating up the kitchen. Our breakfasts are always fun, and usually we end up doing pancakes one day, scrambled eggs and sausage one day (breakfast burritos), bagels one day, etc... then by the end of the week we're all on pop-tarts and cereal. For lunches, we pack lunch meat sandwiches or PJB and eat on the beach, bringing along a watermelon, grapes, crackers, etc to munch on as well. We found that bringing a HUGE pitcher or cooler of water out to the beach saved lots of trips back to the house to rehydrate, especially for the little ones, and is much better than juice boxes or sodas, which just get full of sand and have to be dumped and wasted. We also ALWAYS make a stop at the Weeping Radish brewery on our way into the OBX to buy cases of their microbrewed beer... which is always a hit.