This is the kind of dish that I like to serve at dinner parties simply because it can be prepared well in advance and then popped into the oven before your guests arrive.
For quick weeknight solutions, prepare and stuff cannelloni shells. Wrap tightly with wax paper; freeze until ready to serve. Let thaw in the refrigerator. Unwrap and place in a baking dish; top with your favorite supermarket pasta sauce, and bake as directed.