Now that you have your ingredients ready, follow these simple steps to create the delicious Slow Cooker Lemon Herb Chicken and Rice:

1. Prepare the Slow Cooker: Spray the inside of the slow cooker with non-stick cooking spray for easy cleanup.

2. Sauté the Onions and Garlic: In a skillet, heat olive oil over medium heat. Add the chopped onion and cook until softened. Stir in the minced garlic for an additional minute until fragrant.

3. Combine Base Ingredients: In the slow cooker, add the sautéed onions and garlic. Layer in the rice, chicken broth, lemon zest, and lemon juice.

4. Add the Chicken: Season the chicken breasts with oregano, thyme, rosemary, salt, and pepper. Place the seasoned chicken on top of the rice mixture.

5. Cook the Dish: Cover the slow cooker and cook on low for 4-6 hours or on high for 2-3 hours. The chicken should be cooked through and easily shred with a fork.

6. Add Peas (Optional): If using frozen peas, stir them into the slow cooker about 30 minutes before serving to warm through.

7. Fluff and Serve: Once the cooking time is up, remove the chicken and shred it with two forks. Return the shredded chicken to the slow cooker and gently mix it with the rice.

8. Garnish: Sprinkle fresh parsley on top for a pop of color and added freshness.

These straightforward steps make the preparation of this dish simple and enjoyable, bringing forth incredible flavors and textures.