Leftover Baked Potato Casserole

We had baked potatoes for dinner last night and they were so big our family of 5 only finished 3 of 6 potatoes.  I decided to make a casserole out of the leftover potatoes tonight.  Everyone loved it.  It was thicker than mashed potatoes and had so much flavor.  It was delicious.  It was also super easy to prepare.  You don't really need a recipe.  Just peel and mash up leftover baked potatoes then add your favorite baked potato toppings (plus some cream or milk) and bake.  

Ingredients:  

2 1/2 lb. leftover baked potatoes
1 onion
4 T. butter
heavy whipping cream (or 1/2 & 1/2, milk, whatever you have)
sour cream
salt
fresh ground pepper
chives

Here is what I did:

I peeled three large leftover baked potatoes.  These were really big potatoes about 2 1/2 pounds total.  Then I microwaved them 3 minutes to warm them up so they would be easier to mash.  I let the boys mash them with the potato masher.  They all three took turns.  

I sauteed a diced onion in 2T. butter until it was golden brown.  I added the onion to the potatoes, then added 2 more T. melted butter, heavy whipping cream and sour cream (no measurements - just get the texture you want).  Stir all together and salt generously to taste.  You can add some fresh ground pepper if you like.  

Scoop into a greased pan.  The boys picked some chives from the garden so we sprinkled chopped chives on top.  Bake in a preheated 350 degree oven for 30-35 minutes or until it is heated through and bubbling with golden brown edges.