Heat oven to 350° F. Spray 9-inch glass baking dish or pie plate with nonstick cooking spray.
Cook pasta according to package directions; drain.
Meanwhile, pound each chicken breast with meat mallet to ¼-inch thickness*. Stir together breadcrumbs and salt in shallow bowl. Dip each side of chicken breast in crumb mixture.
Heat oil in 10-inch nonstick skillet over medium heat. Cook chicken, 2 minutes on each side, until chicken is browned. Reduce heat to low. Continue cooking 8-10 minutes, turning if necessary, until chicken is no longer pink.
Place cooked linguine in prepared dish. Top with spaghetti sauce. Place chicken breast over sauce; top with Mozzarella cheese slices.
Bake, uncovered, 10-12 minutes or until cheese is melted and pasta is heated through.