Freeze dried food is outrageously expensive and there are few calories in it. You can do better in a supermarket and have better quality.

While hiking, I find I need 3,000 calories a day, which I pack into 1.5 pounds. I only carry one serving of oatmeal for the last day if I can make it out by noon. I may carry a sandwich to eat in the first hour or two of the trip.

About 3 years ago, I made a website with some recipies. The prices are outdated. Even if you don't like the recipes, it may give you some idea. Try all recipes at home first. There are some recipes for home cooking mixed in.