I love camping, and I love eating... so I think I can help you out here. :)
Are you taking any cooking and cooling equipment? If you can keep food cold, you have more options... deli meats, eggs, pasta salad. Think high calorie food. Things can be cooked over the fire. I love throwing eggs, potatoes, cheese, and ham in a skillet over the fire for breakfast. You can also wrap things in foil - try potatoes and veggies with some garlic or something on top.
Staples can be snack/granola bars, homemade trail mix (get some mixed nuts, sunflower seeds, chocolate chips, etc on your own because it's cheaper), fruit, and pb&j sandwiches.
Hope this helps!