Sounds like slow cooker. You can google lots of recipes. I dont put water in esp if its pork, if its leand beef though, I would put a bit of oil in. I have non-stick multicooker which has slow cooking programme.
If its stew, I would add water/stock of course.
I normally brown the meat a bit, stew for a bit and add all the veg and leave but you can put things at the same time - depends on the meat too. Great for when you go to work ie chuck stuff in inthe morning and come home to cooked dinner.
The beauty of my multicooker is it automatically keeps warm when the cooking programme has ended