I would say spaghetti and meatballs is definitely one of them, but also like pulled pork, sliders, that you can just, that one's pretty easy. I feel like it's a one pot thing and then you just have your buns on the side and you put it in. I think that's a good one and you can cook a lot of it.
A really great one pot meal is chili. Now, something most people don't think about is that most chili bases have tomatoes, some chili peppers, onions, stuff like that. You know what else has that as a base? Salsa. So what you're going to do is you go and you get a big jug of salsa, probably about a pint. You pour half that pint into a crock pot and you put in some beef. You can put a pound, maybe two pounds. A pound is probably enough for that. Put in some cans of black beans, two cans of black beans, can of white beans, and then follow that up with some brown sugar to taste, some cumin, chili powder, and garlic. It's a simple thing that you can put in your crock pot, leave for a couple hours. I set mine for four hours or so, come back from work. You could even go until eight hours.
Get a roast, get a bag of potatoes, get a bag of carrots, and anything else that you want to throw in there. Whatever seasonings that you want, start it on a high slow cook and eat it eight hours later and everything is soft and fall off the bone and it's an entire stir fry mix and like potato hearty mix I guess and it is fantastic.