Id like to offer an idea,Power shakes,etc
 

You can purchase those hi calorie powdered drink mixes at health food places,gyms etc.
They are good economical sense because they in some cases dont taste bad and come in many flavors.
Those with children that may be concerned can look at it like a malt a meal on roids,lol.
Water or some milk and it has enougth vitamins and calories for anyone,you can halve the servings for little ones etc.

That way you can stretch you preps etc.

Just a thought.

Re: Id like to offer an idea,Power shakes,etc
 

And for those BugOutBag types,it makes sense cause you can take say five or six zip lock bags with portions.
That way you reduce your weight.