If the budget is around 7 yuan, you can eat dry mixed noodles, cold rice noodles, casseroles and the like. If you really want to eat rice, you can only eat one vegetarian dish.
This is the casserole of our school, 6.2 yuan. Add a portion of rice and 0.5 yuan is full.
Then when your budget can reach 15, you can choose more rice, but I will still choose some flour and noodles
The following is our school's fat beef and corn coarse grain noodles (13 yuan/serving) and tinfoil flower powder (10 yuan/serving).
When your budget has no upper limit, you can eat whatever you want, such as griddle, maocai, Mao Xuewang, army hotpot (too expensive to try) and order takeout. I usually choose pot-stewed when I have enough money, and I can also add some dishes you like and meatballs to it (I like to fill the oil sticks with juice, not to mention how delicious it is). The attached picture is as follows.
There are many kinds of lunches in the university. You can arrange them according to your own preferences and living expenses. I hope my answer can help you.