Make-Ahead Pizza-Pasta Bake

3 cups penne pasta, uncooked
1 each small green and red pepper, chopped
2 cups spaghetti sauce
1 1/2 cups pepperoni slices
1/4 cup Parmesan cheese
1/2 cup shredded mozzarella cheese, divided
1/2 cup shredded cheddar cheese, divided

* COOK pasta in large saucepan as directed on package, omitting salt and adding peppers to the boiling water for the last 2 min.; drain.  Return to pan.  Stir in spaghetti sauce, pepperoni, Parmesan and 1/4 cup of each shredded cheese.
* SPOON into 8- or 9-inch square baking dish sprayed with cooking spray; top with remaining shredded cheese.  Cool.  Wrap tightly in plastic wrap.  Freeze up to 2 months.  Refrigerate overnight to thaw.

* HEAT oven to 375 degrees.  Remove plastic wrap from baking dish; cover with foil.  Bake 55 minutes or until heated through, uncovering after 45 minutes.