Instant Pot Italian Chicken Stew

Ingredients

• 1/2 teaspoon pepper
• 1 carrot
• 2 tablespoons olive oil
• 2 stalks celery
• 1 tablespoon tomato paste
• 1/2 cup loosely packed fresh basil leaves
• 1/2 teaspoon dried oregano
• 14 ounces can unsalted diced tomatoes
• 1 teaspoon salt
• 1/2 cup kalamata olives
• 1/2 onion
• 12 ounces low sodium chicken broth
• 12 ounces boneless skinless chicken thighs
• 2 bay leaves