Half of my salary is spent on dinners!

I'm a student (evening uni)+ have a night job earning little over minimum wages (35k). The thing is that in the office dinner k waqt khane ka koi acha or sasta option ni hota apart from bun kababs, na kareeb ma koi daal wali shop khuli hoti h jiski waja se rozana thore mehnge food options hi rehjate (500-600rs) and it's been going for 7+ months and because of that I barely save any from my salary. + Junk food ki waja se weight bhi gain krlya h and proper effects feel hone lggae as I went from ghr ka khana to junk food everyday.

And Jis din uni off ho to office timing aisy h k ghr ka khana bana hua ni hota or beghair tiffin k jana prta h, and ma is garmi ma tiffin pack kr k uni bhi ni le k jaskta q k bag ma hi kharab hojaega khana. All I want to know any better alternative.

Please koi guide krde jisse jaib or sehat dono bacha sakun