Brown Rice and Black Bean Casserole

We LOVED this casserole...hearty, full of yummy vegetables, and easy to make. Great for leftovers too. We will definitely be making this one again- it really was delicious.
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Brown Rice and Black Bean Casserole

1/3 cup brown rice
1 cup vegetable broth
1 Tbs. olive oil
1/3 cup onion, diced
1 medium zucchini, chopped or thinly sliced
2 chicken breasts, cooked and diced (I used 1/3 of the Costco rotisserie chicken)
1/2 to 3/4 cup sliced mushrooms
1/2 tsp. cumin
Salt, to taste
Cayenne Pepper, to taste
1 (15 oz.) can black beans, rinsed and drained
1 (4 oz.) can green chilies
1/3 cup carrots, chopped small
2 cups shredded swiss cheese

Mix the rice and chicken broth in pot on stovetop, bring to a boil. Reduce heat to low, cover and simmer 45 minutes, or until rice is tender. Preheat oven to 350 degrees. Lightly grease a medium-sized casserole dish. Heat the olive oil in a skillet over medium heat and cook the onion until tender. Mix in the zucchini, chicken, and mushrooms. Season with cumin, salt and cayenne pepper. Cook and stir until zucchini is lightly browned and chicken is heated through. In a large bowl, mix the rice, onion, zucchini, chicken, mushrooms, beans, chilies, carrots, and half of the swiss cheese. Transfer to the baking dish and sprinkle remaining cheese on top. Cover casserole dish loosely with foil and bake for 30 minutes. Uncover and bake 10 more minutes, or until bubbly and lightly browned.