It takes some time to gather the ingredients and make it, but I always take my
homemade granola when I camp.
If camping at the car, I use real milk with the granola. On the trail, I add the powdered milk and coffee creamer powder to the serving before I go. Then just add water. Love that stuff!
Lunch on the trail: canned sardines with some crackers or pita bread. (bring salt!)
Or peanut butter and grape jelly on pita bread. I have a little plastic bottle I use to carry the PB and J; It originally carried chicken or beef bullion.
