Spinach-Chicken Breast Rolls

From Good Housekeeping magazine - this one won a prize!

• Ready In: 1 hr 15 mins
• Serves: 4

Ingredients

• 4  medium boneless skinless chicken breast halves (about 1.25 lbs total)
• 1  egg white
• 5  ounces frozen chopped spinach, thawed and well-drained
• 1⁄3 cup low fat cottage cheese, drained
• 4  ounces part-skim mozzarella cheese, shredded
• 1 1⁄4 cups  light spaghetti sauce, with garlic & herbs
• 2  tablespoons tomato paste
• 6  ounces  dried  multi-grain spaghetti (optional) or 6  ounces  whole wheat spaghetti, cooked according to package directions and drained (optional)

Directions

1. Preheat oven to 375. Place each chicken breast between wax paper; lightly pound with flat side of meat mallet to about 1/4 inch thickness.
2. In bowl, stir together egg white, spinach, cottage cheese, and half the mozzarella; spoon on chicken, leaving 1/2 inch border. Roll up from narrow side. Place, seam side down in 2-quart rectangular baking dish.
3. Combine spaghetti sauce and tomato paste. Spoon over chicken.
4. Bake, uncovered, for 25 minutes. Uncover, sprinkle with remaining mozzarella. Bake, uncovered, about 25 minutes more or until chicken is no longer pink (about 170 degrees) and cheese is light brown. Let stand 10 minutes. Serve with spaghetti.