I occasionally cook on the road while staying in corporate apartments. These kitchens are functional, but often lack basic ingredients that you don’t want to buy and leave on the road.
How do you fry ground beef without oil?
Start it in a little simmering water instead of oil, and let it fry in its own fat once the water cooks off. The full method is in How do you fry ground beef without oil?.
How do you cook other foods without oil?
Salad dressing or water can help.
How do you cook without salt and pepper (or other seasoning)?
Salad dressing, sausage, prepared meats all contain spices.