Take a look at Walmart. They carry large containers of freeze dried and dehydrated foods that can be repackaged into the sizes you want. I haven't compared the prices with Mtn House but that comes packaged in individual meals. That's expensive to produce.

Wally's used to carry large containers of Wise Freeze dried foods for emergency storage. It was priced better but it was mostly vegetarian.

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.