I’ve done a bit of solo camping. Kielbasa, brats or something similar can become the basis of a weekends meals. First night bake foil wrapped potatoes and onions in the fire. Cook the sausage in a pan so you catch the drippings. Usually have a spinach based salad as a side.
For breakfast make home fries with extra baked potato/onion cooked in sausage drippings. Add fried eggs and coffee. Or make an omelet with extra spinach/cheese/onion.
If hiking, lunch is leftover sausage, hard cheese like cheddar, nuts, dried fruit, carrot/celery sticks and crackers (oyster hold up well). If lunch is around camp use a pie iron with canned biscuits/sausage/cheese for a hot sandwich.
Dinners can use leftover sausage in stew with onion/celery/carrots and rehydrated mushrooms. Or sausage used to doctor up a can of baked beans.
Lunch the next day spins off of eggs you hardboiled the day before. Carry as is if hiking or add to spinach salad, tuna salad or make egg salad. (I collect condiment packs when I have a camping trip planned.) World Market often has little jars of interesting condiments too.
Having the protein already cooked comes in very handy when the weather makes outdoor cooking difficult.
