Replace the Gay Lea Gold with Gay Lea Regular Sour Cream.
The cauliflower and cream sauce mixture can be prepared ahead and rewarmed to toss with hot pasta.
For extra flavour and crunch, top the pasta with crispy prosciutto. Lay 2 slices of prosciutto out on a parchment-paper lined baking sheet; add to the oven during the last 10 minutes of roasting. Cool completely and crumble.