Italian Sausage Stuffed Shells

Details

Ingredients

• 1 (16 ounce) package jumbo pasta shells
• 3 teaspoons vegetable oil, divided
• 1 pound bulk Italian sausage
• 1 (16 ounce) package finely shredded mozzarella cheese, divided
• 1 teaspoon dried Italian seasoning, plus more for garnish if desired
• 1 (24 ounce) jar prepared marinara sauce