Joe Yonan's picks for "not bad" Boston food-cart items

Downtown Crossing: Watermelon slush (by Richie's), Freddie's Popcorn and Ice Cream, Washington Street near Summer Street; cherry shaved ice, Snow Biz Treats, Summer Street concourse; beef chili with cornbread, Home Plate, Summer Street concourse.

Harvard Square: Eggplant with beef, Chinese Kitchen, Oxford Street at Everett Street; grilled steak with white-bean salad, Dudley Al Fresco, outside Dudley House (Lehman Hall), Harvard Yard.

Longwood Medical Area: Taiwanese chopped pork, Chinese Kitchen, Longwood Avenue at Avenue Louis Pasteur

MIT: Meatball pizza, Yona's Pizza & Subs, East Parking Lot, Ames Street at Main Street.

Map Yonan's choices for the best and worst food-cart items in Boston.

Listen to Yonan describe his "best" and "worst" picks