Preheat oven to 400° F. In a small bowl, combine all spices for turkey rub and mix well. Place turkey breast on a greased baking sheet or roasting pan and rub all over with spice mix to coat well. Bake for about 1 hour or until internal temperature reaches 170° F. Let rest 10 minutes before slicing.
Heat olive oil in a large skillet over medium high heat. Add onions and cook 5 minutes or until softened. Add corn, green chilies and cumin and sauté 3 minutes or until fragrant. Transfer to a large bowl and add bread cubes, stock, salt and pepper and mix to combine. Transfer to a greased baking dish. Bake with turkey breast for 1 hour.