Buffalo Chicken Stuffed Shells Recipe

Ingredients

• 2 tablespoons olive oil, plus more for baking dish
• 1/2 cup yellow onion, finely diced
• 1/4 cup celery, finely diced
• 1/4 cup carrot, finely diced
• 2 cups shredded cooked chicken, roughly chopped
• 1 1/4 cups buffalo, sauce (recipe follows)
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1 cup ricotta cheese
• 1/2 cup parmesan cheese, divided
• 1/2 cup blue cheese, divided
• 1 cup shredded mozzarella cheese, divided
• 1 large egg, lightly beaten
• 18 cooked jumbo pasta shells
• 1/4 cup ranch dressing
• 2 tablespoons thinly sliced scallion tops (garnish)
• 3/4 cup hot sauce (Frank’s Red Hot)
• 8 tablespoons butter, cut into pieces
• 1 tablespoon white wine vinegar
• 1/4 teaspoon kosher salt
• 1/8 teaspoon ground black pepper