01 -
Peel and dice the potatoes. Thinly slice the onion and cut kielbasa into 1.25 cm rounds. Preheat oven to 190°C.
02 -
In a large skillet over medium heat, cook kielbasa slices for 3-4 minutes until lightly browned. Add onions and cook until softened and translucent.
03 -
In a mixing bowl, mix cream of chicken soup, sour cream, milk, garlic powder, black pepper, and 113 g (1 1/2 cups) of shredded cheddar cheese until smooth.
04 -
Grease a 23x33 cm (9x13 inch) baking dish. Add diced potatoes, sautéed kielbasa, and onions. Pour the creamy cheese mixture over and gently stir to combine evenly.
05 -
Cover the dish with aluminum foil and bake for 50-60 minutes until potatoes are fork-tender.
06 -
Remove foil, sprinkle remaining 57 g (1/2 cup) cheddar cheese on top, and bake uncovered for an additional 10-15 minutes until bubbly and golden.
07 -
Let rest for 5-10 minutes before serving. Garnish with chopped parsley if desired.