Preheat oven to 375 degrees Fahrenheit and grease a 9x13 inch baking dish.
In a large skillet, heat olive oil over medium-high heat and brown the ground chicken until fully cooked, breaking it into small crumbles.
Add the diced onion and garlic to the skillet and sauté for 3 to 4 minutes until the onions are translucent.
Stir in the taco seasoning, black beans, corn, diced tomatoes with green chilies, and chicken broth; simmer for 5 minutes to combine flavors.
Fold in the cooked rice until the mixture is uniform.
Transfer the chicken and rice mixture to the prepared baking dish and spread it into an even layer.
Top the casserole with shredded Mexican blend cheese and crushed corn tortilla chips.
Bake in the preheated oven for 20 minutes or until the cheese is melted and bubbling.
Remove from the oven and garnish with fresh cilantro before serving.