Found this one on tasteofhome.com
Cheesy Ranch Potato Cubes
6-7 medium potatoes, cut into 1/2 inch cubes
1/4 cup butter, cubed
1 cup (8 oz) sour cream
1 envelope ranch salad dressing mix
1 cup (4 oz) shredded cheese (I used a little more :)
Wash, cut and place potatoes on a generously greased (I used nonstick spray) 11x7 cookie sheet. Dot with butter. Cover with aluminum foil and bake at 375 for about 40 minutes (until tender).
Combine sour cream and salad dressing mix, spoon over potatoes. Sprinkle with cheese. Bake, uncovered, for about 5 minutes or until cheese in melted.
We had this with BBQ pork and a salad.
Our Review: Mike said he could eat these every night! I really liked them too :)