01 -
Peel and cube the russet potatoes. Place in a large pot and cover with salted water. Bring to a boil and cook until fork-tender, about 15–20 minutes. Drain well, mash together with butter and warmed milk or cream. Season with salt and pepper, then set aside to cool slightly.
02 -
Preheat oven to 375°F. In a large mixing bowl, combine ground beef, egg, breadcrumbs, ketchup, Worcestershire sauce, diced onion, minced garlic, salt, black pepper, and finely diced bell pepper. Mix gently to incorporate without overworking. Let rest for 10 minutes.
03 -
Coat a standard 12-cup muffin tin with nonstick spray. Evenly divide the meat mixture among the cups, gently pressing to eliminate air pockets. Leave a 1/4-inch space at the top for expansion.
04 -
Bake the meatloaf cupcakes for 20 minutes. Remove from the oven and brush tops with ketchup. Using a piping bag or spoon, apply mashed potatoes generously over each cupcake. Texture the surface with a fork, and finish with shredded cheese, cooked bacon, and chopped chives. Return to the oven and bake for an additional 10–15 minutes, until cheese is melted and tops are browned.