Microwave the bag of cauliflower rice according to package directions.
Melt two tablespoons of the butter in a large, non-stick frying pan.
Add the cooked cauliflower to the pan and cook for a few minutes. Set off the heat while preparing the risoni.
Boil a pot of salted water and cook the risoni or orzo pasta according to the box directions.
Drain the pasta.
Return the pan with the caulflower rice to the stove top over medium heat.
Add the remaining two tablespoons of butter and stir together the cauliflower rice and risoni until the butter is melted.
Add the garlic and cook for a couple of minutes until fragrant.
Stir in the lemon juice and fat free half and half. Bring to a simmer and cook, stirring often, until starting to thicken.
Stir in the Parmesan cheese and cook briefly, stirring often, until it's melted into the risoni.
Stir in the parsley off heat. Season with salt and pepper and serve.