I think I only ate ramen once, I had PB and J for lunch almost everyday and pasta a fair amount, but mainly I split food with others to keep meal costs low. Its obviously a lot easier to do with good friends who will help you out.
Even without knowing anyone, you could still live in employee houseing(in late season) or camp for free, find a boring night job and keep costs super low. I didnt work when I was out there. A spring pass is 350 or so if I rememeber good from april to close and plane tickets bought a month or 2 in advance are 350 max from the east(you have to search hard).