Love the crockpot! I once roasted a turkey breast in the crockpot. It was delicious!
I do a lot of skillet meals in the camper. Ground turkey breast (I don't eat beef, but you could do beef, too) browned, then add broth, "cream of" soup, frozen corn, carrot coins (from the produce department), broccoli florets or green beans and egg noodles. I also add salt, pepper, onion powder and coriander. Let it all simmer for 20 mins to half an hour and serve.
We also do ground turkey nachos or tacos. Velveeta makes pouches of cheese sauce that work well for the nachos.
When I was a kid camping with our family, my parents would make omlets with peppers, onions, mushrooms and cheese for dinner and serve them with Texas toast. Unfortunately my husband has a thing about eating eggs any other time but breakfast. Those omlets were good!