I like chicken and tarragon casserole.
Cut chicken into mouthful sized pieces and shake in a bag with seasoned flour. Brown in a frying pan with olive oil.
Put into slow cooker then sprinkle about another tablespoon of flour over the top.
Fry onions until soft in frying pan and add a couple of cloves of garlic towards the end. Put into slowcooker.
Then chop loads of root veg (carrot, parsnip, potatoes, sweet pots) then mushrooms, courgettes (I just chuck in whatever I have to hand).
Put it all in the slowcooker and mix up with the chicken and onions, then add a couple of handfuls of chopped taragon then stir in some chicken stock (to come about half way up the pot). Stir it all around - shove the lid on and leave it to cook. I usually give it a stir around every couple of hours if I'm around.
You can substitute other herbs (sage and/or thyme is yummy too).
I like it kind of wateryish but if you like it more gravy like then just add more flour at the beginning.
You could also try chicken in boursin sauce which is delicious too.
Cut chicken into slivery slices, cut up 4 carrots into matchstick sized pieces. Put chicken and carrots into the slowcooker. In a pan melt a whole boursin cheese with a large glass of white wine. Then pour into the slowcooker. Mix around then leave to cook.
Serve with rice.