I agree with those asking "why freeze dried"? They have two things going for them.... they last a long time (but so do most conventional dried foods packaged properly)... and they are very convenient to prepare.
The expense factor is why I only have about 1 weeks worth of meals in freeze dried "camping food"... and that was the absolute last purchase I made, after years of prepping. They are great for the BOB's... but because of our limited budget, they sure weren't the first or second priority.
Look at other alternatives... canned meats (especially if you can put some up yourself), tuna, canned soups. Lots of dried veggies will make a HUGE difference in how appetizing the beans and rice are. Add some condiments, too.. a tsp of prepared mustard can change the entire flavor of a salad dressing, a marinade, or a casserole.
Most of the freeze dried foods end up costing a minimum of $2 per meal per person. Using beans and rice and my own canned meats, I can feed them for the entire day for less than that. That means.... 3X as long a time prepared for, for the same or less money.
*Dehydrated* foods aren't cheap, either, but they are at least half the price of freeze dried per serving. You might want to consider taking some of the money you would have spent and buying some dehydrated butter powder, cheese powder, etc... for protein and flavor and versatility.
If you gave me 100# each of beans and rice, some various seasoning mixes and a couple dozen cans of assorted meats... I could feed half the town for a month. The same money might- MIGHT- buy enough freeze dried food for my family for a month.
Summerthyme
edited to add.. JC, we must have posted at the same time. As I said above, I don't disagree with your figures.. but I can feed my entire family for the cost of ONE person's freeze dried meal. I'm almost to the point of being able to consider buying a few "treats" in freeze dried. And the extended shelf life is a nice "plus" if we all get lucky enough to not need any of our preps for 25 years! But for someone who is really on a budget, and who thinks TS is about THTF, they may get more peace of mind out of 6 months worth of basic preps than 1 or 2 months of high end gourmet freeze dried meals.