Help build a one-acre organic rooftop farm in North Brooklyn by attending an all-you-can-eat-and-drink benefit tomorrow night at Roberta’s. Joe Bastianich and Mark Ladner will host the event, which begins at 7 p.m. Purchase tickets for $150. If drinking’s more your thing, the Brooklyn Botanic Garden is hosting an Oktober-fest event on October 22. "The Garden’s Director of Science, Dr. Gerry Moore, will enlighten us on the botanicals behind beer-making with New Yorker contributor Burkhard Bilger," says Brooklyn Based. Drink four seasonal Northeast beers including Thomas Hooker Octoberfest Lager. Tickets are $25.