Combine first 8 ingredients in a large shallow roasting pan; toss well. Bake at 450° for 30 minutes or until lightly browned, stirring occasionally. Remove from oven; set aside. Reduce oven temperature to 375°.
Place flour in a large saucepan. Gradually add milk, stirring with a whisk until blended. Cook over medium heat 8 minutes or until thick, stirring constantly. Add provolone cheese, 1/2 cup Parmesan cheese, salt, and pepper; cook 3 minutes or until cheese melts, stirring frequently. Remove from heat; stir in roasted vegetables and macaroni.
Spoon mixture into a 3-quart casserole coated with cooking spray. Combine remaining 1/4 cup Parmesan cheese and paprika, and sprinkle over macaroni mixture. Bake at 375° for 20 minutes or until bubbly.
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