01 -
Heat your oven to 400°F (200°C) so it's nice and hot when you're ready to bake.
02 -
In a small bowl, stir together all those fragrant spices - chili powder, cayenne, garlic powder, smoked paprika, onion powder, cumin, oregano, salt and black pepper. This homemade blend will give your casserole that authentic Mexican flavor!
03 -
Grab a 9x13 baking dish and add your chopped onion, diced red bell pepper, uncooked brown rice, and your freshly mixed seasoning. Give everything a good stir so the rice and veggies get coated in those spices.
04 -
In a separate large bowl, mix together the chicken broth, chopped green chilies, olive oil and tomato paste until well combined.
05 -
Pour your broth mixture into the baking dish with the rice and veggies, and stir until everything is evenly mixed.
06 -
Now fold in the corn kernels, black beans, and shredded chicken. Mix thoroughly so all ingredients are evenly distributed throughout the dish.
07 -
Cover the baking dish tightly with aluminum foil (this helps the rice cook properly) and pop it in the oven for about 65-70 minutes, until the rice is tender.
08 -
Take the dish out of the oven, carefully remove the foil, and sprinkle the shredded cheddar evenly across the top.
09 -
Return the uncovered dish to the oven for 5-10 minutes, just until the cheese gets melty and starts to turn slightly golden around the edges.
10 -
Let the casserole rest for 5-10 minutes before serving. This helps everything set up nicely. Then top with fresh cilantro, green onions, avocado chunks, and a dollop of your favorite salsa.