I think oldog was suggesting that you cantilever a bar top out over the side away from the kitchen proper. I've done something very similar in 2 different houses, and such always turned out to be well-used and much enjoyed. Makes a great place to eat, snack, or read the latest newspaper if fitted with decent lighting (I used can-lights, with high-intensity spot bulbs). Just equip it with taller bar stools, which wouldn't project much into the walkway to the other room when not in use. And the wide doorway into that room is a natural, allowing plenty of space even when the stools would be in use. A long, narrow table would still fit, IMHO.