Put frozen casserole mix in bottom of slow-cooker. Cut chicken breasts in half, put on top of casserole mix. Add water until it reaches almost the top of the chicken. Add noodle soup straight from the tin, give a little stir. Add pinch of mixed herbs, also you can add salt and pepper if you wish. Leave for 6-8 hours, the chicken breasts should fall apart. Add dumplings for extra yummyness.