Is there a LLM/ChatGPT tuned to help with weekly meal planning that doesn’t suck? Why not?

As a home cook, I’d like to get a weekly meal plan for dinner plus a shopping list focused on my interests, so I can use it for inspiration.

This seems like a really good LLM application:

• it doesn’t have to be factual
• huge corpus of data to work from (recipies, meal plans)
• can tune to suit my (or a users) taste
• ideally it cood avoid repeats (by knowing what it suggested last week)

And, so far the ones I’ve found seem… Underwhelming. Has anybody found somethig good? Ideas about why not?