To be clear,
Last time I was at Meadow TP [see my sig] (agree Meadow has more food options) it had a COUPLE apples and bananas in hanging baskets near the coffee machines. But nothing more in terms of variety or count. Although on any day YMMV.
If you think you need a grocery replenish during your stay, over-order initially. The stock in the Trading Post is minimal, expensive, and opportunistic. They have basics plus expensive extras like beer, wine, etc. Anything you buy will be more expensive than you pay for in your local stores. And in case I'm not making my point, you won't pay more, you will pay a LOT more.
But for basics (buns, charcoal, sewer hose, beer/sodas) you will pay an arm/leg if it's in stock. No meats other than lunch meats like bologna. They have more square footage dedicated to merch than food stuffs in the TP's.
Really, my advise is don't rely on the TP. They may not have what you need. If they do, it will cost a fortune.
Bama Ed