Place cubed potatoes: in a large pot and cover with water. Add a pinch of salt.

Boil: Bring to a boil over medium-high heat, then reduce to a simmer. Cook until potatoes are fork-tender, about 15-20 minutes.

Drain: Drain the potatoes well.

Mash: Return potatoes to the pot and mash with a potato masher until smooth.

Mix in: Add sour cream, milk, and butter to the potatoes. Stir until well combined and creamy. Season with salt and pepper to taste.

Cook Bacon: While potatoes are cooking, fry the bacon in a skillet over medium heat until crispy. Transfer to a paper towel-lined plate to cool, then crumble.

Slice Green Onions: Finely slice the green onions.

Layer: Spoon a generous portion of mashed potatoes into bowls. Top with shredded cheddar cheese, crumbled bacon, and sliced green onions. Add optional protein like leftover turkey or ham if desired.

Enjoy: Serve immediately while hot. The cheese will melt into the mashed potatoes, creating a gooey, delicious meal.