Bring a large pot of salted water to a boil and cook linguine until al dente. Drain and set aside.
In a bowl, mix together ground beef, breadcrumbs, Parmesan, egg, Italian seasoning, salt, and pepper.
Roll into meatballs, about 1.5 inches wide.
Heat olive oil in a large skillet over medium heat. Cook the meatballs in batches until browned and cooked through, about 8–10 minutes. Remove and set aside.
Reduce heat to low and melt butter in the same skillet. Add minced garlic and sauté for 1–2 minutes until fragrant.
Pour in the cream and stir until it starts to simmer. Add the Parmesan and whisk until smooth.
Return cooked linguine and meatballs to the skillet and toss gently to coat everything in the sauce.
Serve with a sprinkle of parsley and a bit more Parmesan if you’re feeling wild.