Menu: All vegetarian, mostly Middle Eastern, totally filling.

Two locations: 34th Street between Walnut and Spruce, 10:30 a.m.-4 p.m.; Spruce between 35th and 36th, 11 a.m.-3 p.m. Monday-Friday.

Look for: A dark-green awning and a line about 10 deep.

How long: Family-owned and -operated since 1984.

Web: magiccarpetfoods.com.

The old-fashioned way: 215-334-0948.

Order: Magic meatballs. At least one person in every country had them, says manager Debbie Carson. These savory, tofu-based orbs are slathered in tomato sauce and come in a pita or over veggies and rice, which are called "Bella Donna."

Also very good: Hearty, veggie-chocked chili, mild falafel or any of the specials, which inevitably run out by 1 p.m.

What you'll spend: Pita sandwich, $5. Platter, $7.50.

How you'll pay: Credit cards accepted.

Don't mind: The line. It moves fast. During a recent lunch, two friendly workers served nine customers in less than five minutes.

An exploration of mobile food operations, as relayed by wannabe food trucker Lauren McCutcheon.