COMBINE first 4 ingredients in 13x9-inch baking dish. Bake 30 to 40 min. or until squash is tender. Meanwhile, cook pasta as directed on package, omitting salt.
DRAIN pasta, reserving 1/2 cup cooking water. Add to squash mixture with cooking creme and 1 cup shredded cheese; mix lightly. Top with crouton crumbs and remaining shredded cheese.
BAKE 20 min. or until heated through.
Shredded cream cheese
Crushed red pepper