Hello
try keeping it simple
Cheap meat cuts work well
Gammon
1 gammon joint, tin of cider, celery, carrot, onion. Leave it for the day, meat falls off joint and serve with mash.
Brisket
Beef brisket joint, sweet potato, carrot, tin of beer, onion, leave it for the day. Again meat falls off the joint and you're done. Again meat falls off joint and serve with mash
Hot pot
stewing beef, carrot, potato, chop and leave for the day
Sausages
good quality butchers sausages (don't scrimp) tin of chopped tomatoes, carrot, sweet potato
Hope that gets you started. We love our slow cooker, it's low effort and great on work days, do it, leave it and feel like a domestic Goddess