1Heat oven to 350°. Cook and drain pasta as directed on package.
2While pasta is cooking, melt butter in 3-quart saucepan over low heat. Stir in flour, salt, 1/2 tea-spoon Italian seasoning, the pepper and garlic. Cook over medium-low heat, stirring constantly, until mixture is smooth and bubbly; remove from heat. Stir in milk. Heat to boiling over medium-high heat, stirring constantly. Boil and stir 1 minute; remove from heat. Stir in Italian cheese blend and 1/4 cup of the Parmesan cheese until melted.
3Gently stir pasta and sausage into cheese sauce. Pour into ungreased 3-quart casserole. Sprinkle with remaining 1/4 cup Parmesan cheese and 1/4 teaspoon Italian seasoning. Bake uncovered about 30 minutes or until bubbly.