Meat is heavy, but it provides a great deal of protein and energy. Granola bars and trail mixes are great for a snack while paddling. Bagels hold up when being lugged around. Carrying pasta sauce in plastic jars will lighten the load. It is often prohibited to take cans into state and national parks.
Raw vegetables are light, easy to carry and offer many tasty options.
Pack some spices in film canisters. Try some of your favourite recipes. Look up some camp recipes at your local library or on the internet. Water should also not be overlooked. While some of the more remote lakes contain potable water, you can never be too sure.