Step 1: Cook the Rice

• In a medium pot, combine the brown rice and vegetable broth. Bring to a boil, reduce the heat to low, cover, and simmer for about 45 minutes, or until the rice is tender. Set aside once cooked.

Step 2: Prepare the Oven

• Preheat your oven to 350°F (175°C). Lightly grease a large casserole dish to prevent the casserole from sticking.

Step 3: Cook the Vegetables and Chicken

• In a large skillet, heat the olive oil over medium heat. Add the diced onion and cook for about 3 minutes, until softened. Stir in the zucchini, cooked chicken, and mushrooms. Season the mixture with cumin, salt, and cayenne pepper, cooking until the zucchini is lightly browned, and the chicken is heated through.

Step 4: Assemble the Casserole

• In a large mixing bowl, combine the cooked rice, sautéed vegetables, and chicken, along with black beans, diced green chiles, shredded carrots, and 1 cup of shredded Swiss cheese. Stir the mixture until everything is well combined, then transfer it to the prepared casserole dish.

Step 5: Bake the Casserole

• Sprinkle the remaining 1 cup of Swiss cheese over the casserole. Cover loosely with foil and bake in the preheated oven for 30 minutes. After 30 minutes, uncover the casserole and bake for another 10 minutes, until bubbly and lightly browned on top.

Step 6: Serve and Enjoy

• Allow the casserole to cool slightly before serving. Garnish with fresh herbs or add a dollop of sour cream for extra flavor. Enjoy this warm, cheesy comfort food!