1. In a pot of boiling salted water, add the pasta and quartered cauliflower and cook for 8 minutes reserving ½ cup cooking water.
  2. In a bowl, add the bread crumbs, ½ of the cheese, diced bacon, thyme and pinch of salt and toss to combine.
  3. Once the pasta and the cauliflower are cooked and drained, add to a deep roasting tray with the reserved cooking water.
  4. With a fork, smash the cauliflower to break it up into smaller chunks.
  5. Add the remaining cheese, thickened cream and toss through and season with salt.
  6. Top the bake with the breadcrumb mixture and place under a hot grill, or in a 200C oven, for 8 minutes, or until golden and bubbling.