Place the olive oil into the bottom of the crock pot. Turn the pot onto the highest setting (if variable available) and add the onions. Allow the onions 10-15 minutes to warm in the oil. Add the remaining ingredients, including the water. If cooking the dish all day, reduce heat to low; otherwise leave on high setting. Cover. Leave to simmer.
Come home to a wonderful smelling house. Stir the dish while in the crock. If it is dry, add a little water. If it's soup-like, remove lid for a little while, or turn heat to high setting.