Peel, seed, and slice tomatoes. Slice squash, carrots and zucchini. Dice
potatoes. Place lamb and vegetables in slow cooker. Mix salt, garlic,
thyme, and bay leaf into chicken stock; pour into crock pot over lamb and vegetables.
Cook on low 8 hours. (Don't peek. Lifting the lid prolongs cooking
time.) Turn to high. Blend flour and butter, then shape into small
balls. Drop into stew and cook, stirring several times, until thickened.
Serve over hot noodles or rice.
Don't lift the lid to stir, especially if you are cooking on the low
setting. Each time you lift the lid, enough heat will escape that the
cooking time should be extended by 20 minutes to half an hour. To check
progress without lifting the lid, spin the cover until the condensation
falls off. Then it's easy to see inside.