To anyone who has ever complained about a closet-size New York City galley kitchen, consider the 60-square-foot space at Battersby, the restaurant of the moment on Smith Street in Cobble Hill, Brooklyn. Joe Ogrodnek and Walker Stern, the chefs and owners, turn out up to 200 covers a busy night from this tiny kitchen. At Alain Ducasse at Essex House, where the two worked together, ''the garde-manger station alone was almost the size of this entire restaurant,'' Mr. Ogrodnek said. ''It was luxurious. But, it turns out you really don't need much space to do what you want to do.'' Here, see how three chefs navigate their cozy professional home. SOPHIE BRICKMAN [ABSTRACT FROM PUBLISHER]