Low Fat Stuffed Shells

Bahan-bahan (6 porsi)

• 8 ounces (24) jumbo shells
• 1½ teaspoons extra virgin olive oil
• 1 cup finely chopped onions
• Two 10-ounce packages frozen chopped spinach, (thawed and squeezed dry)
• 2 cups 1% cottage cheese
• ⅔ cup dried bread crumbs
• ¼ teaspoon grated fresh nutmeg
• ¾ cup freshly grated Parmesan cheese, (divided)
• salt and pepper, (to taste)
• 1 large egg white, (lightly beaten)
• 3 cups marinara sauce, (divided)