What food options are available past security in Bangkok airport’s domestic section?

I am flying in from Sweden through Suvarnabhumi onwards to Krabi. Having been in Thailand before, I know how long the lines can be, so I would like to clear immigration, customs and security as soon as possible.
Suvarnabhumi’s website is kind of sketchy on the details as to what food options are available in the domestic part of the terminal. It seems there only something called City Garden, but doesn’t say what kind of venue it is (kiosk, fast food, breakfast, full service, etc).
What are my options? I will be arriving at around 6 AM, so a hearty meal might after the long leg might be in order.
UPDATE: According to this video of concourse A, B, C and D, it seems that there are plenty of outlets. Does anyone know if the video shows what is past the checkpoints?
Best Answer
Poking around, I came across this website. The main website is "Suvarnabhumi Airport: New Bangkok Airport Guide". The link goes to a long-style post about various restaurants and food stalls available on different levels and areas of the airport.
The page states there are several Asian eateries in the domestic end of the airport (Terminals A, B, and C) but lists and names City Garden only. It does list several restaurants and stalls in the Main terminal which I assume you would pass through from the international terminals (E, F, and G) to the domestic ones. Terminal D is along the Main Terminal and I couldn't determine if it handled domestic or international flights.
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