Italian Beef and Cheese Manicotti Recipe - Food.com

Ingredients

• 1/2 lb ground beef
• 1/2 cup finely chopped onion (from 1 onion)
• 1 (15 ounce) container whole milk ricotta cheese
• 1 1/2 cups shredded mozzarella cheese
• 1/2 cup freshly grated parmesan cheese
• 2 tablespoons chopped fresh flat-leaf parsley
• 2 garlic cloves, minced
• 1 1/2 teaspoons salt, plus more to taste
• 1 teaspoon fresh ground black pepper, plus more to taste
• 3 teaspoons olive oil
• 12 pieces manicotti (from one 8-ounce box)
• 1 1/2 cups marinara sauce (see below for recipe)
• 1 tablespoon butter, cut into pieces