It looks pretty good to me. I think a non-AI generated website would probably have a 'New to Idli?' section to help people who might have had it once at a restaurant or something and wanted some background information, but otherwise nothing stands out to me as 'artificial'.

Of course, with a short product-oriented website like this the text does not need to be very complex or sophisticated. Usually in longer blocks of text I will notice little giveaways if it is AI generated (like DAll-E is famous for having trouble with hands). But this all looks Good Enough to me.

I bet if you ask, ChatGPT will give you advice on how to build traffic by spending small sums of money on advertising. Best of luck!