They sell the ramen seasoning separately. It’s the same stuff in the little packets. If you can’t get it locally, Amazon has it. Search for “ramen seasoning”.
This conversation reminds me of when I discovered I can buy the Mac and Cheese powder for a lot less than buying the box. I love it on popcorn and homemade tortilla chips. Also can be used to make Mac and Cheese for cheap.
How do earth-sheltered homes comply? I’ve seen a few, and they have no windows in most of the rooms, including bedrooms. And there’s a few who’ve taken to living in caves, old mines, and decommissioned missile silos. There must be an exception to this code.