List is Displaying Only One Menu

If the take-away page is displaying only the products of a single menu, probably there is a "Menu Filtering" enabled for this menu item.

You should access in your Joomla administrator and open the settings of your Take-Away Menu Item.

Click on the x to reset the menu filtering.

Make sure the Filter Menu setting is set as "Select an option". In this way, by default, the Take-Away page will display immediately all the published menus.