Raman is very bulky and if you are trying to stuff things in a bear cannister, the Raman gets crushed and then is just paste. Ramen noodles are soaked in fat- and the fat can turn rancid if they are too old. The fat is great for calories, but check the expiration dates. I also think Ramen has dubious nutritional value other than calories.

Any time you fully cook and then dehydrate, it will be more bulky. When I have to use a bear cannister, I do not even use commercial freeze-dried meals because they are bulky.

I once went out with a person who was gluten sensitive, so we did rice noodles- they never would get cooked at high altitude.

Cous-cus and instant brown rice are my staples. You have to cook the rice a little but not much. I also like regular linguini- it takes little space and does not break as much as angle hair pasta.