Just back from Burger King!
Good directions, ozzo. I would like to add to those directions to maybe save future visitors some walking. You can't turn left directly from Da Zhong Rd. You have to go up and then hook back. I parked near a drain-channel thing and had to walk REALLY far. So, here's what you do:
If you're going north on Mintzu, PASS the overhead freeway (Da Zhong Rd) and then take any right (east) turn after that. If you don't come exactly up to the outpatient building, at least when you get to Rong Cong Rd, you can turn right on that road and hook back to the Outpatient building entrance.
If you're going south on Mintzu (as if you're coming from Tainan), you can turn left at Hua Xia Rd or any other left (east) turn after that but BEFORE the freeway you may already see looming in the distance. (Looming? What? Are they making fabric?) You will pass Rong Cong STREET and then come to Rong Cong Rd. Turn right (south) and you will come to the Outpatient building (on the left).
If you're standing on the sidewalk (facing the building) between the motorcycle and car parking areas, the main entrance will be at 10 o'clock. However, there's a path at 1 o'clock that goes up over a bridge into a small door. Below there's a drainage area with air conditioners and COOLING TOWERS down there. (I'm always happy to see those--haha). Go in that door and turn left, following the windows. When you reach the end of the hallway, turn right and there's the food court.
I looked in the back and the kitchen looked big. I couldn't see if they had real grills or if they microwaved the meat. If it's the only BK in GaoXiong, I'm assuming they grill meat there. (You never know, though. Tesco doesn't make their formerly good sausages on-site anymore. They're made in PingDong Xian and they're absolutely flavorless.) I had a Whopper meal and a "dan dian" bacon double cheeseburger. Both were good. I hope it lasts--they seem to be doing good business, especially since they have a "semi-captive audience".
Also, 12:30pm seems to be a good time to go: I got hit on by a nurse!