It would be helpful to have a step-by-step walkthrough on the site (video or screenshots). The "How It Works" section is a little vague to suit that bill.
I'm looking for both an example of what to expect and inspiration for how I could be eating with your service.
I'd also recommend focusing on the API integrations, and/or whatever other features separate elevate this beyond asking $LLM for a weekly meal plan and shopping list taking into account dietary preferences.