1 Falafel Cart
20th and Market sts.
Philadelphia's most sacred falafel is made in a beautifully decorated cart in the heart of the business district. Don't believe me? The wait sometimes exceeds 20 minutes. Charcoal-grilled chicken and falafel that's crispy on the outside and tender on the inside are placed in a delicate pita wrap along with beet-stained hummus, fresh greens and a tangy sauce.

2 Jon's
18th and Market sts.
Philadelphians don't like anyone messing with their cheesesteaks. Like a baboon protecting its young, they'll hunt you down and scratch your eyes out. Not only does the eponymous Jon have the balls to alter the traditional chicken cheesesteak, he one-ups the original. Huge, juicy breasts of marinated chicken are thrown on the grill, diced into chunks and blanketed with melted cheese. Homemade honey-mustard sauce is drizzled on top, making this sandwich a steal at just $4.

3 MexiCali
36th and Spruce sts.
Penn campus' prize cart boasts a menu that could put most sit-down restaurants to shame. The brick-thick burritos come in all varieties, from the standard beef and chicken to an unusual sweet potato or plantain with citrus hominy. The nachos are as big as my head, which is pretty impressive considering my nickname in college: Big Head McGee.

4 Kim's
37th and Sansom sts.
This truck serves the standard Chinese fare and then some but earns its kudos with its ginger chicken and Singapore noodles. Most dishes are prepared with your choice of chicken, shrimp, beef, pork or subgum, a combination of all four. There's even a courtyard where you can sit and digest before going back for more.

5 Magic Carpet
34th and Walnut sts.; 36th and Spruce sts.
Hey hippies, chew on this: The town that put scrapple on the map also serves great vegetarian food. Magic Carpet's menu features many meat-a-likes, including the seizan, a grilled seitan pepper steak served with rice and fresh veggies.