Warning: dumping a whole can of tuna into boxed mac got me 3 days of fishy leftovers
I figured a $1 can of tuna mixed into a $1 box of shells would stretch my grocery week, but the smell took over my whole fridge by the next morning. Lesson learned: drain it, rinse it, and only mix in what you'll eat that night. Anyone got a cheap protein that doesn't turn everything in the fridge into a seafood box?