I use my slow cooker probably once a week, in fact I have two slow cookers, one large one and a small one of my mother's, which is good for doing single portions.
I tend to use them for chicken or beef casseroles, I brown the meat first and add things like peppers, garlic and onions, chilli pesto cos "some like it hot
" I've been using those Knorr stockpot jelly like thingies, I like the Mexican one. Sometimes I just add tinned tomatoes instead. Sweet potatoes cook very well with the meat and don't need to be par boiled first. I have also made soup in my slow cooker, I find it very useful, particularly when we were having our kitchen fitted and were without our proper cooker for a while.