Butternut Squash Stuffed Shells

Bahan-bahan (6 porsi)

• ½ box (about 20) large pasta shells
• One 24 ounce jar Classico Riserva marinara sauce
• 15 ounces part skim ricotta cheese
• 6 ounces cream cheese, (at room temperature)
• 8 ounces shredded Havarti or Mozzarella cheese, (divided)
• 1 cup grated Parmesan cheese, (divided)
• 1 cup finely diced fresh butternut squash
• 1 tablespoon minced fresh sage
• salt and pepper, (to taste)