Had served in the SAF, 1st Battalion Guards from 1994 to 1996. Had ate my fair share of this horrid ration so ahem i gonna share my suffering here with u guys.

Here is a picture of the ration courtesy of
http://phototec.hp.infoseek.co.jp/sin2.jpg
Information :
1. Comes in cases of 10
2. Outer packing resembles the hard brown tough plastic of US MREs.
3. Each ration is for 24hours
4. Available in halal, non-halal and vegetarian menus.
5. Approx 1kg++/ration
6. Approx 3000++ calories/ration if fully eaten (NOT!)
5. Typical ration could be :
2 x Fruit Bars (packed separately)
Apricot, dates or figs in a biscuit finger individually wrapped in army green thin foil package,size of a uncle toby's museli bar. Quite tasty actually and its great to eat on the move.
4 x Biscuits Pack
Flavours of chesse/chocolate/butter. 5pcs / clear package. This is bullshit. Old Hard Tack biscuits were tastier than this foul $%$#!@. Hardly carried into the field. Tried eating it after dunking into coffee but it is still bad.
1 x Lunch Pack
Resembles the standard MRE entree but normally is a rice combo dish. Etc Glutinous rice with chicken sasuage, braised duck rice. Taste foul. Normally not eaten.
1 x Dinner Pack
Standard MRE entree to me, it has a wide variety. Could be currychicken, tandorri chicken, satay chicken, curry mutton, pasta bolognaise, etc. I liked the pasta dishes best.
1 x Instant Noodle (packed separately)
Same bought off those supermarkets, this is a instant noodle of various flavours like chicken, curry, prawn, etc. Best item in the ration imho, best eaten with entree like curry chicken for a hearty meal (cooked of course).
1 x Dessert Pack
Desserts are local like redbean/greenbean soup, borborchacha, etc. Basically its a sweet soupy thingy.
1 x Accessories Pack
Consists of hexamine tablets, box of matches, pkt of tissue paper, 1 x Pocari isotonic drink mix, 1 x Instant Coffee 3in1 mix, 1 x cereal drink mix, ice-tea beverage mix, 1 x pkt Malt Candies (6pcs).
As so many overburdened grunts normally we just bring part of the combat rations like entree pack, fruit bars and drink mixes to the field and we dump the rest.

Edit : Add dessert pack.
Edit : Changes to hardtack biscuits.
Edit : Update to Combat Ration Content
Pictures courtesy of http://phototec.hp.infoseek.co.jp/mretop.htm