Hi there, by default the menucard will show two categories per page, each in their own column. If you’ve set up child categories then those categories will be shown in the same column as well. So looking at your site, you’re best bet to get more to display on the page would be to group the existing items into sub-categories.
For examples instead of one category for: Lunch combo, lunch catfish. Created a categories called “Lunches” and then add those two as sub categories. Like in the demo they have with Beverages>Beers – http://screencast.com/t/4AycXsybiVZ