Parents keep eating my meal prep

I (21M) work a physically demanding job that leaves me tired at the end of the day and most of the time I fall asleep as soon as I get home, because my mom goes to bed around 8pm I’m not allowed to cook past 7:45 because she says the smell of food keeps her up so I’ve tried doing meal prep in Sundays but by the time I get home on Monday my parents have eaten one plate each and by the time Tuesday rolls around I don’t have any of my meals left I have tried making more to compensate but it ends the same even talking to them hasn’t helped they claim that food prepared more than 2 days in advance is bad for your health so I asked if when my mom makes lunch for her and dad if she can set some aside for me to take to work the next day but it never happens, eating out is getting expensive with me not having much left after giving 60% of every paycheck to my parents due to my dad being out of work since January, they keep getting on my case for not saving money and wasting it on take out but they’re not leaving me much of a choice, what do I do