In a large, microwave safe bowl or jug whisk together everything from the water down to and including the parsley.
Zap for one minute in microwave, whisk, zap for one more minute.
Remove from microwave.
Stir in chopped laughing cow pieces (or grated cheese) till melted.
Open a 1 litre (US quart) jar of potatoes, stir in, with canning water and all.
Spray a 2 litre (2 quart) casserole dish.
Empty in the casserole dish.
Bake at 175 C (350 F) for 45 minutes.
Remove from oven.
Let stand 5 minutes before serving.
Notes
If you will want a thicker sauce, add another tablespoon of corn starch. Won't affect nutrition much.Feel free to add more cheese or any cheese of your liking: the cheese quantity is low here in an effort to keep it low-cal, but you can splurge a bit more if desired.