Makes 8 servings Ingredients 4 cups (32-ounce jar) marinara sauce1 (8-ounce) box manicotti1 tablespoon olive oil1 (10-ounce) bag baby spinach leaves2 cloves garlic, minced2 (15-ounce) containers ricotta cheese2 large eggs1 teaspoon salt1/4 teaspoon black pepper 1/2 teaspoons Italian ...