One Pot Italian Chicken & Orzo Stew - Chew Nibble Nosh

Ingredients

• 1 lb. boneless, skinless chicken breasts, cut into 1-inch cubes
• 1 Tbsp. olive oil
• 3 Tbsp. refrigerated pesto, divided
• 3/4 cup chopped onion
• 1 cup sliced carrots
• 1 small zucchini, quartered and sliced
• 1 red bell pepper, chopped
• 2 cloves garlic, minced
• 1 cup uncooked orzo
• 1 (14.5 oz.) can crushed tomatoes
• 2 cups chicken stock
• 1 tsp. chicken bouillon
• 1/2 tsp. oregano
• 1/4 tsp. salt
• 1/4 tsp. pepper
• 1/4 tsp. crushed red pepper flakes
• 1/2 cup grated Parmesan cheese, plus more for serving