"I substituted fontina cheese for the cheddar (they don't really have cheddar in Italy!). I found the broccoli to be a bit soggy, so I recommend leaving it in the pasta water for a shorter amount of time if you want it to be more al dente. The flavor wasn't THAT strong but I think next time I will change the cheese ratio to have some more parmesan in there to give it a stronger flavor. Overall I really did enjoy this as a healthy alternative to regular mac and cheese.