Food Court => CAD12
Causal => CAD15-20 per head [Tim Horton, KFC, A&W]
Serviced => CAD25-30 + 15% per head [White Spot, Denny's]
Decent => more than CAD40 + 18% per head [Downtown/Hotel Restaurant]
I recommend you to have dinner on Sunday night at Seasons in the Park, if possible. The restaurant has scenic view and it has a special prime rib 3-course dinner at $42.5, only on Sunday nights. https://www.vancouverdine.com/seasons/menus/#section-3