So we just went on our first week long camping trip with the family to a new camping "resort" in the area. Loved it, the place was magnificent! We packed our travel trailer full of food and snacks...
When we travel, we go far from home. Start out carrying minimal food supplies. Once at our first destination where we will be for a week or two before moving on, then we stock up on groceries. Sometimes we cook, sometimes we eat out, especially at locally owned restaurants. We are very flexible and hardly ever plan more than two days ahead for what or where we are going to eat. And sometimes it depends on how good the fishing is. ;)