Hellobee Boards

For snacks, I'd go with whole fruit (apples, oranges, etc.), dried fruit, nuts, trail mix, popcorn, homemade breakfast bars (I've made these ones, and love how customizable they are: http://www.wellsphere.com/healthy-cooking-article/homemade-trio-bars-and-homemade-kind-bars/), veggie straws, cereal that you can eat right out of the box, etc.

For meals, I'd probably take things that can be assembled easily while you're there - bread, nut butter, and bananas for quick and easy sandwiches, hummus and green/red peppers, oatmeal, pitas that you can heat up over the grill with laughing cow cheese spread and pepperoni, that kind of thing!