Preheat the oven to 350°F. Slice the kielbasa as thinly as possible, about 1/8-inch thick pieces, if possible. Chop the onion. Warm the oil or bacon grease in a large stainless skillet over medium high heat. Add the sausage and the onion. Cook, stirring frequently, until the sausage and the onions are lightly browned, about 4 minutes.
Remove from the heat. Add the hominy and green chile to the kielbasa and onions. Stir to combine. Add the sour cream, salt, pepper, cumin, and cayenne to the skillet and stir to mix well. Bake for 30 minutes, until hot and bubbling. Remove from the oven, stir well, and sprinkle with cheese. Bake 5 more minutes until the cheese has melted. Serve hot. Enjoy!
Creamy Hominy with Green Chile and Kielbasa https://barefeetinthekitchen.com/creamy-hominy-casserole-recipe/