Mostaccioli Spinach Bake Recipe

• 8 ounce mostaccioli uncooked
• 2 Tbsp. reduced-calorie margarine divided
• 1 c. onion vertically sliced
• 2 tsp chopped garlic
• 1/4 c. all-purpose flour
• 2 1/2 c. skim lowfat milk
• 1 1/4 c. shredded parmesan cheese divided
• 1 1/2 tsp dry Italian seasoning
• 1/2 tsp pepper
• 14 1/2 ounce canned tomatoes Italian style
• 10 ounce frzn minced spinach
•     vegetable cooking spray
• 1/4 c. dry bread crumbs
• 2 Tbsp. shredded parmesan cheese

Directions