When you say camping, not sure if you mean really roughing it, or have access to elect etc. But you mentioned not having any way to keep frozen food. You did say you would have a cooler with ice. Before we got "older" and decided we were ready to do things a little easier, we used to camp in pretty primitive style.
Here's a tip that I used to use during camping and hunting trips. If I had time I would make chili and stew, those kinds of things, at home before going. At times I would just make double batches of chili, venison, chicken soup, and have them ready for any trip we went on. Freeze it in coffee cans, use the frozen cans to help keep your cooler cold. When you are ready to use, just set the can on the edge of your campfire or grill. Stir now and then as it heats up, and eat when it gets hot. If you don't want to go to the bother of cleaning the cans you can pack them out in the trash, so less dishes to wash. Or reuse for something else. Using foam beverage cups for chili and soup cuts down even more on dish washing.
If you're going fishing, try cooking your fish the way my ancestors used to do it. (and still do) This is a treat with a trout!! Clean it well, but leave the head on, and find a nice stout, green stick that you know is a 'safe' wood. Not something bitter or nasty. Try apple, cherry, aspen. No cedar or pine!! Put the stick up into the fish as if you were threading a hot dog on it, with the stick up into the head. (I guess if the idea of having the head on really grosses you out you could do it without the head, but it helps to hold it) Rub some butter, sprinkle some salt and pepper, maybe some lemon and some hot sauce. Put the stick into the ground near the fire, with the fish kind of on an angle toward the fire so that it cooks slowly without burning. Turn occasionally. A wonderful way to cook fish, and again no pan to wash.
But if you have your crockpot with you, try this one. One stick of butter, and one package of dry Good Seasons Italian salad dressing mix. Melt the butter and blend in the dry mix. Add a pound of chicken breast that has been cut into cubes and cook on high for 4 hours or low for 6 hours. Near the end of the cooking, mix one can of cream of chicken soup with a small package of cream cheese. Blend in well with the chicken mixture and when it's good and hot serve with noodles or rice. mmmmmm.
BTW, hunting for your food is always great, just remember that there are certain seasons to hunt for various animals. You can't just run out into the woods and start shooting stuff.