Heat a large skillet over medium high heat. Add onions and soy sauce and cover with a lid for about two minutes to allow onions to begin to sweat. Removed lid and stir with a spatula and saute for another 2-3 minutes. Add remaining spices and sausage and saute for 3 minutes, stirring constantly, until spices are fragrant and sausage has begun to brown. Add potatoes and black beans to the skillet and mix until heated through. Remove from heat and add to a mixing bowl. Set aside to allow to cool for about 10 minutes.