Well, I just got back from Young Women's Camp as the Co-Head Cook and wanted to write down what worked and what did not. We served about 150 people, 11 meals, along with snacks.
Opening dinner: Baked Potatoes with Corn on the Cob, Watermelon "popsicles", Baked Beans, and toppings
http://cleverhousewife.com/2012/05/how-to-cook-corn-on-the-cob-for-large-crowds-cooler-corn/
http://catchmyparty.com/photos/654134
http://www.howdoesshe.com/bbq-beans-recipe/
S'mores Bar: Graham Crackers, Marshmallows, and assorted candy bars
Up and at'em Cocoa Bar: Hot Cocoa with 5 Toroni flavors, whipped cream, marshmallows, peppermint candy
Breakfast Burritos: Tortillas, Scrambled eggs, Sausages, Hash Browns, and toppings
http://cdm-arewethereyet.blogspot.com/2012/04/breakfast-burritos.html
Packed Lunch: Bagels, chips, frozen Caprisuns, and frozen Whoopie Pies
Whoopie Pies: 1 cake mix, 1 egg, and 1 stick butter, and frosting
Spaghetti Dinner: Spaghetti, Sauce, Salad, and Parmesan grilled Bread
Bread Spread: Butter and Parmesan Cheese from Green shaker
Cooked Apples: Cored Apples, Caramel dots, cinnamon, brown sugar, Craisins
http://familyspice.com/baked-apples-campfire-style-3/
Overnight Oatmeal: Steel cut oats (Bob's Red Mill), Apples, cinnamon, brown sugar, butter, and toppings
http://www.theyummylife.com/Slow_Cooker_Apple_Cinnamon_Oatmeal
Deli sandwiches: Turkey and ham sandwiches, treats, fruits
Sweet and Sour Meatballs: Meatballs, rice, Sweet and Sour Sauce, Oriental salad, fruit
http://allrecipes.com/Recipe/The-Best-Sweet-and-Sour-Meatballs/Detail.aspx
http://busymomrecipes1.blogspot.com/2011/06/oriental-salad-with-ramen-noodles.html
Banana Boats: Bananas, Chocolate Chips, and Marshmallows
http://quick-dish.tablespoon.com/2011/08/24/grilled-chocolate-banana-melts/
Pancakes: Pancakes, Scrambled eggs, Baked Bacon, and toppings including fruit syrups and Monkey Butter
http://www.thismommycooks.com/2012/07/homemade-blueberry-syrup.html
http://www.adventuresofadiymom.com/2011/09/raspberry-syrup.html
http://www.madefrompinterest.net/2013/05/monkey-butter/
Chicken Pita Wraps: Grilled Chicken, grilled onions, pitas, shredded lettuce, and toppings including dressings
Sweet Pork Salad: Pork, salad, tortillas, toppings, rice, and beans
Muffins: Costco Muffins, danishes, milk, apple juice, bananas, apples
We ran out of meatballs and needed more chicken for the grilled pitas. Yet for the most part we really had some great food to offer the girls and they enjoyed it.