Need ideas for food to serve at a party for a non-profit I work with. There will be about 30 people at the party; about 15 kids ages 4-15 and roughly 15-20 staff members mostly college students. Basically, each staff member, about 10-12 of us, is expected to bring some food item for the party. We have roughly $50 to spend for the night. Have done pot lucks in the past with mixed results. Looking for an alternative to ordering pizza. Healthier option are encouraged as we are a health promotion organization. Also, limited resources are available at the party location; a sink, a microwave, a fridge, and a crockpot. I am looking for recipes/menu ideas that require various ingredients but little if any prep time to pull together to make a complete meal. I would like to have them all contribute to one main dish or a cohesive meal. Also, I am looking for ideas that are kid-friendly and allow kids some choices; i.e we did nachos once and let the kids choose their toppings. Any ideas would be greatly appreciated!