8 oz uncooked rigatoni
1 T olive oil
1 c chopped onion
1 (10 oz) pack frozen spinach, thawed
3 c cubed, cooked chicken breasts
1 (14 oz) can Italian-style diced tomatoes, un-drained
1 (8 oz) container Philadelphia chive & onion cream cheese
½ t salt, ½ t pepper
1½ c shredded mozzarella cheese

-Prepare rigatoni according to pkg directions. Spread oil on bottom of 11×7 in baking dish; add onion in a single layer. Bake at 375 for 15 minutes or just until tender. Transfer onion to large bowl, set aside.

-Drain chopped spinach well, pressing between paper towels. Stir in rigatoni, spinach, chicken, & next 4 ingredients into onion in bowl. Spoon mixture into dish & sprinkle evenly with shredded mozzarella cheese. Bake covered at 375 for 30 minutes; uncover & bake 15 more minutes or until bubbly