Ok how about Asia Cafe in SS15, facing the famous colleges. Can cuci mata oso.

Then in Taipan behind True Fitness there's a Korean restaurant on the 1st or 2nd floor. If you stand in front of McD's and look towards the building you can see its advertisement on an electronic billboard. Forgot the name though.

In the mornings in USJ 11 there's a nasi lemak van parked in the housing area facing a block of shops. There's only one block of shops in USJ 11. If you like nasi lemak with freshly fried chicken check them out.

In Taipan also, opposite Kayu Nasi Kandar (up the road from SS15 McD's) there's a famous Hokkien fried noodles shop situated in a kopitiam. In fact there are two shops side by side, I prefer the one closer to Kayu.

A few shops away from Burger King in Taipan there's a pizza place. I can't remember the name of the shop, but they serve quality Italian fare at reasonable prices. Quite cosy and private especially indoors. They are opposite McD's.

Towards the end of USJ going towards the Kesas highway to Puchong and Shah Alam, I think it's USJ 18 or something like that. After the Petronas station keep left, and turn in at the junction. There are a few dim sum shops on the left worth checking out. Further down the road are a few steamboat places, one of them (AFAIK) serves porridge steamboat.

Ya that rojak guy used to have many ppl lining up for his rojak. I remember having to be careful eating under the tree cos sometimes there are crows in the trees, dunno when they will let go their breakfast on my rojak LOL.

Now that you brought it up, there are two other famous rojak vendors in PJ, one in Tmn Mayang (under a tree also LOL) at the turning off from the LDP towards the old LimKokWing, the other one is in Sec 17. As you travel on Jln Universiti towards UH, turn left after you see the Honda showroom on your right further up the road. After turning left travel about 100m ahead, you'll see the rojak stall on the left, and yes, under a tree.

As for good pizzas and pasta, there's a Marco's (IINM) in Tmn Mayang (I think there's one in Bangsar Village as well). For the Tmn Mayang one, it's across the road from the Kelana Jaya LRT station near the pedestrian bridge.