College Dining Hall Issues

I recently got diagnosed with moderate to severe GP (in july) and started college a week later. Obviously I didn’t know about my GP before I applied and paid my tuition. My college has a required meal plan that we need to buy if we stay in the dorms. I met with my college accommodations office and they said they can’t help with an alternate meal plan or any accommodations when it came to food. My doctor told to me to avoid like 90% of the food that makes up my college dining hall so I’ve been living off of chicken noodle soup and plain pasta for the last 4 weeks. Does anyone have any ideas for what I can do to still get my required nutrients without spending a ton of money? There’s a walmart nearby (the only store near me that has food).