Lauren Baccus and Alan Sherouse of Hell's Kitchen Farm Project talk about growing chard on the roof of Metro Baptist Church. Try Baccus' recipe for black bean chili with butternut squash and swiss chard.

Mayor Mike's war against obesity has employed a wide array of weapons, including posted calorie counts at fast food restaurant chains, an end to transfats in baked goods, 1,000 new permits for street carts selling veggies and, most recently, a ban on sugary drinks over 16 ounces. But here's another tool he might want to consider: banning eating around the city's landmarks and tourist hot spots.

Lauren Baccus and Alan Sherouse of Hell's Kitchen Farm Project get grilled on pigeons and roof-top farming for this 60-Second Stir-Fry.

At East New York Farms in Brookyn, Malabar spinach is a popular leafy green that customers use in Caribbean cuisine. Learn more and check out recipes.

I talk about fleeting opportunities for seasonal eating during my regular Friday segment, Last Chance Foods — last week I spoke with Kurt Alstede of Alstede Farms about the waning days of the sweet corn season.  

Also fleeting are your chances to get lost in a corn maze. For me, they are a wonder-inducing activity that marks the passing of summer into fall, like jumping into a pile of fallen leaves, carving a wicked grin into a pumpkin or Halloween trick-or-treating.

Farmer Kurt Alstede recommends eating fresh sweet corn raw and explained why a little dry weather can make for sweeter fruits and vegetables. Also, try Alstede Farms' recipe for Basil Tomato Cream Corn.

Dora Hinds of East New York Farms recommends stir-frying Malabar spinach in the braising liquid of a roast, 15 minutes before taking the meat out of the oven, so I knew she was not going to wilt under the pressures of my 60-Second Stir Fry.

Hinds grows Malabar spinach and other goodies in her big, sunny backyard. She brings extras to the "share table" at East New York Farms, where farm manager David Vigil has planted Malabar spinach, hot peppers and other veggie staples of the Caribbean.

Gail Hepworth of Hepworth Farms, which supplies the Park Slope Food Co-Op, talks about growing more than 15 varieties of eggplants. Try two recipes for eggplant caponata.

I'm going to start this Stir Fry by answering one of my own lightning round questions, "best reason to be happy summer is coming to an end:" farmers bring in boxes of gorgeous last chance foods to WNYC's Studio 4!

Gail Hepworth of Hepworth Farms knew how to prepare for a stir-fry. She brought a big cardboard box to WNYC's studios, loaded with heirloom tomatoes of all stripes (literally) and white, deep purple, and lavender-and-white speckled eggplants.

My hard, inquisitor's heart was softened.  

Francis Lam doesn't do gingham. That's just one reason the Gilt Taste editor forgoes canning to make "Tomato Bomb Concentrate" and oven-dried tomatoes instead. Find instructions for those two things here.

Francis Lam, the features editor of Gilt Taste, is da bomb. First, he brought me a sample of the homemade tomato paste he so richly describes in this week's Last Chance Foods. Second, threw himself completely into treating the Studio 4 mascot like a live kitty, giving this Stir Fry a creepy, Halloween vibe. Too bad we weren't talking about pumpkins.

Riverpark's chef Sisha Ortúzar and urban farmer Zach Pickens talk about using and growing sweet and spicy peppers. Also, try Riverpark's recipe for Chilled Spicy Farm Pepper Soup.

I blame the last, lazy days of summer on this 120-Second Stir Fry.  Time slowed to a crawl with Selena Gonzalez and Ian Marvy of the Red Hook Community Farm as we discussed top "yums" and "yuks" in the vegetable world and favorite comfort foods.

The hot seat is the favorite place to be for my Last Chance Foods guests, Sisha Ortuzar, chef of Riverpark and partner of the sandwich shop, 'wichcraft, and Zach Pickens, manager of Riverpark's Farm at the Alexandria Center on Manhattan's East Side.  They are big hot pepper fans and brought a paper bag full of them to the WNYC's Studio 4.

After recent reports of cantaloupe contaminated with salmonella, Long Island farmer Thomas Wickham talks about fielding questions from customers concerned about the safety of their fruit. 

At Red Hook Community Farm in Brooklyn, kids help plant vegetables on top of asphalt and learn to love their greens through communal meals.

You can't rile Thomas Wickham with the prospect of the Stir Fry.  "So, what are you going to ask me?" he said calmly, as producer Joy Y. Wang and I corralled him into the Studio 4 hot seat.  

The man's a farmer, and his family has farmed for generations.  I got the sense that nothing phases him.  Not even the unblinking gaze of the Studio 4 cat behind him.

Tennis player Varvara Lepchenko says she felt like an American, ever since coming to the United States to play tournaments here in 2000. She moved to the States in 2001, and credits achieving U.S. citizenship last year with a recent boost in her game. 

Cookbook author Mindy Fox talks about the different varieties of cucumbers currently available and touts their versatility. Try her recipe for Cucumber and Summer Tomato Salad with Fresh Herb Leaves and Barely Pickled Red Onion.