To reduce the potassium, bring the carrots to a boil in a separate pot and drain them prior to adding to the remainder of the dish.
This is a very versitile recipe. Serve it for brunch or lunch, use red peppers instead of mushrooms or make it in tart shells for a snack or appetizer portion.
This traditional dinner makes great leftovers for sandwiches the next day (just slice a yorkshire pudding in half and add some meat and mustard). Yorkshire pudding are a good low potassium alternative to potatoes.