I've decided to make a concerted effort to try some of the many recipes I've bookmarked from other blogs.
Here's one, and what a winner it is!
You can find the recipe at The Expatriate's Kitchen. My modifications were to use all milk instead of cream, and instead of Grana Padano in the sauce and Parmesan on top, I used a mix of mostly Parmesan and some Gruyere, both in the sauce and on top.
My youngest said that I took two of the things she hates most (cauliflower and leeks) and made them taste good. She had two servings. High praise, indeed.