If you don't want to upload pictures for every item you have, you can switch to "List View" and display your menu in a list format. Follow these steps to switch to list view in any category you don't want to use photos:
1-Go to Menus and find the section you want to change.
2-Click "Edit" on the section you want to turn into a list.
3-Find the "Display" option and select List.
4-Save the change you've made and publish to your tablets.
The category you've changed to list will now be displayed as a list. You can always turn this option on/off for any category.