You can do virtually anything in them.
I've got an actifry and I cook using canola oil spray/frylight so helps with the syns
Chips
New potatoes
Carrots - cut into wedges
Courgettes - cut into wedges
Mushrooms
Homemade chicken nuggets
Sausages
All potatoes take about 40-45mins and the veg range between 15-40mins.
I know you can do other recipes, but hope this helps