Assuming you're posting locally, I'd go with crock pot recipes given the weather forecast will be much cooler, overcast, and most likely rainy.
Cook a chicken or beef - chili, tacos, stroganoff, soup etc

I’d like to try batch cooking or meal prep for me, DH and child. I’m looking for « fewer carbs » options (not low carb necessarily, and I can add more carbs in for my son) and am trying to avoid white flour, white sugar, white pasta.

What should I buy I cook? Shopping today to last me through Wed.