Is there a cafeteria?

Yes. Dina's at the Mont provides a variety of food options at HoliMont in the Winter months. HoliMont Bike Park has a food Concessionaire, Wanderer Hut Food Truck.

The main chalet at HoliMont has an onsite "Dina's at the Mont" café providing high end snacks and meals as well as onsite catering for events.  You can see their site here.  The Bike Park has Wanderer Hut Food Truck with a wonderful Polish/Mediterranean Fuzion Menu.