
Heat oven to 350°F. Spray 8x4-inch loaf pan with cooking spray. Cook and drain pasta as directed on package, using minimum cook time.
Meanwhile, in 10-inch nonstick skillet, melt butter over medium heat. Add bread crumbs; cook 2 to 4 minutes, stirring frequently, until toasted. Pour into small bowl. Wipe out skillet.
In same skillet over medium heat, add sausage and onions; cook 7 to 8 minutes, stirring occasionally, until sausage is no longer pink. Drain, if necessary.
In large bowl, stir together sausage, sauce and 1 cup of the cheese. Add cooked pasta; toss gently. Spoon mixture into loaf pan. Top with remaining 1/2 cup cheese. Cover with foil.
Bake 35 to 40 minutes or until thoroughly heated and cheese is melted. Top with toasted bread crumbs and basil.