Heat oil in a large skillet over medium high heat.
Add garlic and cook for 1 minute, until fragrant.
Add chicken and sear for 2-3 minutes, just until golden but not entirely cooked.
Season with sea salt and pepper to taste, then add cooked garlic and chicken to the slow cooker.
Stir in the rice, carrots, onions, corn and peas into the slow cooker.
Add broth and stir to combine. Cook on HIGH for 3-4 hours or on LOW for 6-8 hours.
In a small bowl whisk Greek yogurt and dijon mustard together.
Once the time is up, stir in the yogurt mustard mixture, then season to your taste.
Serve warm, sprinkled with sliced green onions. Enjoy!