Instant noodles... you would need to light a fire to cook it wouldn't you? It's one of the really good things I found about the MRE, you can eat the whole thing without ever touching the match or lighter.
Also I could get one packet for $4. Sure as hell beats the $40 price tag.
Personally, I don't think combat rations need to be that elaborate but I wouldn't complain if the South Korean service had something like that.
This one requires hot water to cook. The result is very good. The contents are the main course, an egg soup and a packet of M&Ms style chocolates. During my time in the military, I came across this one twice I think.
This is the new one. Never got to get my hands on one so I have no idea what it's like but the contents in the picture are as follows: Meatloaf, Kimchee, Pound cake, Meat loaf, Wiener sausages, Chocolate balls, Heat pack, spoon and also a paper food tray. For the first time, South Korean troops have a combat ration that can be eaten warm without having fire lit.
None of these two I found on the web were the ones I had most in the RoK Marines.
This one's from the Japanese Self Defense Force.