Line the crock of your slow cooker with aluminum foil. You will cook the potatoes inside the foil like a packet.
Blend the seasonings together.
Inside the slow cooker, toss together the potatoes and seasoning blend.
Then add in 2 ½ cups cheese, the bacon bits, and green onion or chives, and toss to combine.
Fold the aluminum foil over the potatoes. Cover with the slow cooker lid.
Cook on low for 3 hours. Just before the potatoes are ready, preheat the broiler.
Carefully transfer the foil packet with the loaded potatoes to a broiler-safe baking dish. Place the packet in the dish and open the foil up.
Sprinkle with remaining cheese.
Place under the broiler until the cheese has melted and the edges begin to crisp.
Garnish with sour cream and additional green onions or chives.