Yes, just a teensy 'dash' of the smoke will be enough!
Well, I ended up cooking both batches the same way, then freezing the leftovers -
Beans/vegetable stock and water to cover, onion, salt/pepper, fresh thyme.
Boy were they good - the baby limas especially were so sweet! I figured doing them simply would allow me to use them as a base for other things - like those barbequed beans.