Caramelized Red Pepper Orzo and Chicken Stuffed Peppers

Ingredients

• medium-size red bell peppers, divided
• tablespoons extra-virgin olive oil, divided
• large shallot, thinly sliced
• large garlic clove, finely chopped
• tablespoon smoked paprika
• teaspoon crushed red pepper
• uncooked orzo
• unsalted chicken stock, divided
• tablespoon, plus 1/4 teaspoon kosher salt, divided
• shredded rotisserie chicken
• tablespoon chopped fresh oregano
• panko
• ounce low-moisture mozzarella cheese, shredded
• Fresh oregano leaves