I understand that there are many variables that we're not privy to, but that doesn't change that fact that quick, cheap, simple, nutritious meals are possible, and OP has internet access to find all the info necessary to make it happen. I work 12 hour, highly active shifts, so I'm no stranger to being tired, but it's pretty easy to throw a decent meal together in 15-20 minutes.

OP has said nothing about working long hours or being tired or anything like that. I'm not sure it's wise to assume anything specific about details of their lifestyle too much. I know I was speculating with regards to spending, but they said that they don't eat out much and they still spent a pretty absurd amount just to feed themself, so I gave the possible out of having a restrictive diet. Halal/kosher costs more, gluten-free costs more, most seafood is pricey if they're pescatarian, etc. If that's not a factor, then there's zero legitimate reason to spend $200/week feeding one person aside from ignorance, so I was just trying to introduce them to some thrifty tips and basic shopping/cooking educational resources. An approachable favorite of mine is the Pro Home Cooks YouTube channel because he has some videos where he's doing the prep and cooking in real time while talking to show how fast and easy it is, targeting 15 minute dinners for 2-4 people.

I'm not trying to be a dick so I'm sorry if I've come off that way. I'm sincerely sharing habits and strategies that I've found to be helpful. <3