You can whip the cream and mix it with the cream cheese and sugar to make an icebox cheesecake. I normally use (no tomatoes please) cool whip then 2 bricks of cream cheese and 1/3 cup sugar. You'd probably need more sugar since your whipped cream won't be sweet. Then use the shortbread to make a crust. Melt the chocolate spread it on the crust. Then put in your filling and drizzle more chocolate on top