there are actually a lot more.. couldn't update them all at once..
can pm me for more information, will try to help as much as i can as a penangite (penang food banzai!!! )

CHAR KOAY TEOW
pulau tikus night market

ASSAM LAKSA
Air Itam roundabout (street foodstalls at memorial statue) (only open after 2pm)

HOKKIEN MEE
coffee shop at corner beside ICS computer/petshop which is opposite padang brown (morning only)
same branch with the one at One Corner

CURRY MEE
coffee shop beside Batu Lanchang evening market

KOAY TEOW TH'NG
Hutton Lane - the coffee shop that is opposite the multi-storey carpark (beside Eden)
Air Itam roundabout (street foodstalls at memorial statue) (only open after 2pm)

NASI KANDAR
Kapitan opposite Queensbay mall (behind Max Gourmet)
try the tandoori set (comes in claypot type (briyani rice), served with yogurt)

OH CHIEN (OYSTER)
near chung nam old theatre (air itam) opposite car dealer

SAR HOR FUN
Coffee shop beside Shell Station along Jalan Sungai Tiram (Bayan Lepas main road, direction from airport towards snake temple)

CHICKEN RICE
SIN LAM FATT chicken rice is the best!! (must try chai-boey soup)
Old branch - On the way up to Jalan Tun Sardon (Balik Pulau Hill) beside air itam cemetery fields
new branch - opposite prima tanjung (facing 7-eleven)

CUCUR UDANG
Air Itam roundabout (street foodstalls at memorial statue) (only open after 2pm)

INDIAN MEE REBUS/ MEE GORENG
Coffee Shop at Jalan Satu (Air Itam roundabout)

*NASI LEMAK
Coffee Shop beside Downing Street (Beside HSBC building)

HOT PLATE NOODLE/CLAYPOT RICE/PEARL NOODLE? (ZHEN ZHU FEN)
stalls outside a terrace house (family operated business) - facing permata swimming pool at farlim (beside police quarter houses)
opens on weird days. i go on wednesdays (sometimes they are not even open) and weekends. they can be closed randomly, but you can always call and order
(else you might wait up to 1hour) Number: 604-8273025)