Drizzle olive oil onto a skillet and heat on high.
After chopping up chicken, add to skillet and cook all the way through.
Add cooked chicken to the slow cooker crock pot.
Add remaining ingredients, chicken broth, greens, carrots, onion, lemon, lemon juice, lemon zest, and pepper. Cook for 4 to 5 hours.
Add cooked rice, stir, and serve immediately.