To make the tzatziki, add all tzatziki ingredients into a small mixing bowl. Stir until well combined, then taste and adjust seasonings as desired. Set aside in the refrigerator.

Preheat your oven to 350°F. Spray a 9×9-inch baking dish with nonstick cooking spray and set aside.

If your chicken isn't already cooked, cook the chicken breast using your preferred method, then dice or shred it into bite-sized pieces.

In a large mixing bowl, combine the cooked chicken, frozen cauliflower rice, diced red onion, chopped zucchini, cherry tomatoes, feta cheese, uncooked instant white rice, chicken bone broth, minced garlic, fresh dill, salt, and pepper. Mix everything together until evenly distributed.

Transfer the mixture to your prepared baking dish and spread it out evenly. Bake at 350°F for 40-45 minutes, or until the edges are golden brown and the dish is heated through.

Remove from oven and let cool slightly. Cut into 6 servings and top each portion with a generous dollop of tzatziki. Store leftovers in an airtight container in the fridge for up to 4 days. Reheat individual portions in the microwave as needed. Enjoy!