in a deep skillet place sausages in pan and add just enough water that the meat is half way covered. Cook on med-hi heat until sausages are cooked through.
Remove sausage from the pan while reserving the water for later use. Cut sausages into slices. set aside
in skillet melt butter, when melted add flour and let cook for about 2 minutes stirring constantly, Then add milk while whisking to avoid flour clumps, Then add water from the sausage until sauce reaches the consistency you would like( if sauce becomes to thin just add small amounts of flour until it thickens bake to the consistency you want)
add salt pepper garlic powder nutmeg and chives. stir well to incorporate. Serve immediately over pasta and sausage. Garnish with Parmesan cheese.