Yes, it is possible to create a website in Odoo without requiring any user registration. 

Since your site is a simple one-page website with no e-commerce or user interaction beyond viewing information, you don't need the registration feature at all. 

1. Disable User Signup:
   • Go to the Settings module in Odoo.
   • In the "Users & Companies" section, locate the option for "Public User Signup" and make sure it's disabled. This will prevent any user registration or login prompts from appearing.
2. Ensure No Login Prompts:
   • Since your site is static and only for information purposes (e.g., menu, restaurant details), make sure you haven't included any blocks or features that require users to sign in.
   • You can also go to the Website module and check that no forms (like login or sign-up forms) are enabled on the page.
3. Public Access:
   • Set the website to be accessible to the public by default, allowing anyone to view your content without needing to log in or register.