> It's difficult to make your own ketogenic meals solely via your own grocery shopping

You might need to just spend a little time researching recipes . I have 3-4 that I cycle through. Also, there's always just straight up meat + veggies to fall back on, for which there are many possible combinations and that's probably the easiest thing to make. Most nights I just bake some chicken or salmon and sautee some veggies. No hard thinking involved there. And I'll have leftovers for the next night.

For me the grocery store is by far the easiest way for me to get stuff I can eat. Restaurants / takeout / convenience stores are a minefield of hidden carbs and sugar.