You have ameal plan and a part time job that allows you to spend 50 a week on food and you can't figure out how to take advantage of that and add mass?
Come on JJ.
All I see here are excuses. Man up and analyze your goals.
Tuna,eggs,milk,peanut butter,cottage chees are all reasonably cheap-quality sources of protein and mass builders.
If you really want it, make it happen. If you just wanna come on here and play woe-is-me, wrong place dude.