Steps
1. In a bowl, mix together the ground beef, ground pork, breadcrumbs, egg, milk, onion, salt, pepper, and nutmeg until well combined.
2. Shape the mixture into small meatballs.
3. Heat a pan over medium heat and cook the meatballs until browned and cooked through.
4. To assemble the sliders, place a meatball on a slider bun, top with lingonberry jam, pickles, and chopped parsley.
5. Serve warm and enjoy your street-style Norwegian meatball sliders!