Spray 3½- to 6-quart slow cooker with cooking spray.

In slow cooker, mix carrots, zucchini, onion, lentils, broth, salt and pepper; top with chicken.

Cover; cook on Low heat setting 5 to 6 hours.

Transfer chicken from slow cooker to cutting board.

Use 2 forks to pull chicken into shreds.

Return chicken to slow cooker.

Stir in tomatoes and mushrooms.

Cover; cook about 15 minutes or until thoroughly heated.

Sprinkle with basil.

Serve with cheese.