We got a couple variety boxes of military MRE packets. They're pretty high carb but we might be needing the energy if we have to work hard repairing stuff. There is a main course, 2 side dishes, and a dessert in each packet. They can be heated up by boiling the bags in water. Clean water is all over the place where we live. No stress there.
The rice porrage is a good idea. It's filling and can be versatile. You can make it sweet or savory depending on what you put in it.
That sounds good for your situation. My husband said he has had enough of MREs ;) It's a good place to start though, as you get so much in one packet.
It wouldn't be hard to get really tired of MREs if you had to eat them for long but we're hoping we'll never be in a situation to need to use them and they work well for a short time!