Fresh polish sausage with sauerkraut is a good one. Can use various cuts of pork as well.
As much as I like a good crock pot or insta pot meal.. and I'm probably a rookie and will get roasted for saying this.. but they all have that same crock pot/ slow cooker taste to me.
I've got an off brand insta-pot and I like it because it cooks in a fraction of the time of our old slow cooker.
Just finished the left overs of a small pot roast with my own variation of what I had lying around. Cut potatoes into cubes, added a couple small onions, some fresh garlic, a table spoon of butter, Greek peppers, and onion soup mix. Turned out great, but I'll nix the butter next time...