Meanwhile, put the oil in a medium saute pan over medium heat. Add the chicken and cook for 3 minutes. Add the onions and garlic, stirring to combine, and cook until the onions are soft and the chicken is cooked through, about 5 minutes more. Put the chicken mixture into the bowl with the cooked pasta. Add the tomatoes, cheddar cheese, coriander, salt, and pepper. Stir to combine.

Place the mixture in a buttered 8 by 8 by 2-inch baking dish. In a small bowl mix together the bread crumbs and the Mozzarella cheese. Sprinkle over the top of the pasta mixture. Top with jalapenos capsicum black olives and sprinkle oregano leaves.

Bake until the top is golden brown, about 30 minutes.