From delicate macarons at FP Patisserie by Francois Payard (above) to Maine lobster-filled buns at Luke's Lobster, it's opening weekend for more than 20 kiosks and stalls that fill the new Plaza Food Hall, which joins the Todd English Food Hall on the concourse level of the Plaza, 1 West 59th Street, in Midtown. The newly opened Ribalta, 48 East 12th Street (between University Place and Broadway), in the East Village, hosts Guglielmo Vuolo, a certified master pizzaiolo from Naples, Italy, through Saturday. The authentic Neapolitan pie specials range from a simple margherita pizza to calzones stuffed with ricotta, mozzarella and ham. A special prix-fixe menu including an appetizer, pizza and dessert is $25 per person. To make reservations, call (212) 777-7781. The Five Borough Picnic on Saturday and Sunday from 11:30 a.m. to 4:30 p.m. helps kick off the opening weekend of Governors Island with a mix of food trucks and stands, craft beer, blues music, cooking demonstrations and more. Tickets, $25 per person online, will benefit Slow Food NYC and Kingsborough Community College, among others. Add curry rice, a popular Japanese dish, to the competitive eating arena. Go! Curry holds its final round of the curry eating championships on Saturday starting at 5 p.m. in Times Square, 273 West 38th Street (between Seventh and Eighth Avenues). Admission is free, but e-mail ggc@notionsunited.com to reserve a seat. Vegetarians and their supporters will march on Sunday from the meatpacking district near Little West 12th Street and Greenwich Street to Union Square for the annual Veggie Pride Festival, beginning at noon. From 1 to 5 p.m., vendors will serve food samples, give cooking demonstrations and present lectures. This Memorial Day weekend includes a roster of events and specials at restaurants. Here are some to check out: - The pleasant weather should favor dining and drinking outdoors. The Crow's Nest, on the upper deck of The Water Club, on the East River between 28th and 32nd Streets, opens for the season with its views of the Manhattan skyline and Brooklyn waterfront. There will be live music every Sunday. And at the Meatball Shop, at 170 Bedford Avenue (near North Eighth Street) in Williamsburg, Brooklyn, a tented garden is now open with seating for about 30 people. - All veterans receive a 20 percent discount at Il Tesoro, 1578 First Avenue (82nd Street), on the Upper East Side during a Memorial Day lobster feast. Call (212) 861-9620 for reservations. - One of the most popular rooftop bars in the city - 230 Fifth, 230 Fifth Avenue (27th Street), in the Flatiron district - will have a rooftop garden buffet brunch from 10 a.m. to 4 p.m. on Sunday. The meal is $29 per person (or $15 for children and $10 for men and women in uniform) and includes a mimosa or glass of bubbly. - The Bedford, 110 Bedford Avenue (North 11th Street), in Williamsburg, Brooklyn, has a new chef: Jason Giordano, who is starting a seasonal, market-inspired brunch menu over the holiday weekend. It includes dishes like North Carolina pulled pork hash and French toast fritters. - A special brunch and backyard cookout takes place at Papacitos, 999 Manhattan Avenue (Huron Street), in Greenpoint, Brooklyn, on Monday starting at 11 a.m. There will be giveaways, drink specials, live music and Nathan's hot dogs topped with homemade guacamole, spicy queso and more.