First-year here who ran out of meal plan money. I don't want to add more, because food on campus is expensive and I need to save rent money for next month. What are the cheapest ways to eat healthy for the next two weeks?

I emptied my meal plan dollars and I am almost out of flex dollars as well. I don't want to waste any more money than I have to eating on campus, because I need to leave at least $350 in my bank account for next month's rent. Also, seeing as this is exam week I don't have too much time to be constantly going off-campus for food; I was thinking of stocking up on instant noodles and some fresh veggies from Sobeys, but does anyone else have ideas? Thanks for any input you may have.