Hope you had an unforgettable day
In keeping with Thelmas tradition, here is a successful comfort recipe in this house:
It's also a good way to give left over mashed a new life

left over mashed potatoes (I usually have smashed red skins with the skin left on)
your favorite kind of cheese
lite sour cream
sliced, cooled, boiled potatoes (again, I use red skins with the skin on)
1 med onion
1 med bell pepper if you'd like
butter or cooking oil
2 pinches of salt
non stick spray
2 to 3 slices of crispy bacon

Preheat oven to 350. Fry your onions (and pepper if you choose) with a pad of butter or about a tablespoon of oil with a pinch of salt. While your onions are frying, in a sprayed casserole dish put in last nights mashed potatoes. Press it in as you would a crust. Thin layer of lite sour cream, season with a dash of salt and black pepper.
Next, layer of your favorite cheese followed by the fried onions (and pepper) when done to your liking. It's okay, and even encouraged to get a few drips down on the cheese with the onions. Layer the sliced, cooled potatoes then drizzle the rest of your oil on the sliced potatoes and top your casserole with a final layer of your favorite cheese.
Bake in the preheated oven for approximately 25-35 minutes until cheese is melted and bubbly. Give your bacon a chop and sprinkle over the melted cheese before you serve.