The person who did that article got a lot of info and help from mreinfo.com

I'm also a member of the forum there. Lots of great information on all sorts of rations.

There was a question about use the FRH (Flameless Ration Heater) to make hot water. The newer MREs include a Hot Beverage bag that can be filled and placed in the FRH to heat up.

There are no specific breakfast MREs. Well, there is one or two menus that a bit more oriented towards breakfast.

There is a newer ration call the FSR (First Strike Ration) which is meant to be a limited use 24hr ration. It takes the place of 3 MREs.

The French RCIRs are actually quite good... Another 24hr ration. They come with a little Esbit emergency stove for reheating.

The British 24hr Rations are typically placed in boiling water to be reheated. They don't come with a specific way of heating.