You can cook with just TJs ingredients you just kind of get shitty prices for meats and odd quality vegetables. You aren’t easily going to be able to replicate an ethnic recipe you found on the internet but you could probably cook some bland American recipe from pioneer woman of something. You and I are just spoiled because we cook sophisticated recipes with hard to find ingredients that most people probably don’t care for. Honestly short of a better spice and deli meat selection I can’t really think of something I commonly cook with can’t get at tjs or at least substitute with something acceptable. I don’t shop there because I’m lazy and don’t want to make 2 trips but in a pinch I could make it work. Also Nobody actually needs whole wheat flour unless you are baking whole wheat bread. I make waffles with it and bread starter but if it were to suddenly go missing I could deal. 5lb of whole wheat lasts longer than 50lb of white flour.