Montreal Pizza sauce
Found this article from a Montreal Pizzeria owner, hope its what you were looking for! :-)

The ingredients for Pizzazz Pizza (Montreal, 1989) sauce are:


  
  3 tbsp Pure Olive Oil 45 ml
  3 medium garlic cloves
  1/2 medium onion diced
  1 tsp salt
  1 tsp sugar
  1 tsp oregano
  1 tsp chili or one fresh halapino [sic] pepper
  5 basil leaves
  3 28oz cans san marzano tomatoes (whole tomatoes)
  


Also included in the link is crust, construction and an alternative sauce. Be aware that this recipe is par for 4 16" pizzas, so either adjust as necessary or invite over some friends to share!