Boil the Pasta: In a large pot, bring 4 cups of water to a vigorous boil. Add 1 teaspoon of salt and then toss in the shell pasta. Cook according to package instructions for about 8-10 minutes, until al dente. Drain and set aside, keeping warm.
Sear the Steak Bites: While the pasta is cooking, heat 2 tablespoons of olive oil in a large skillet over medium-high heat. Season the steak cubes with garlic powder, salt, and pepper. Once the oil is shimmering, add the seasoned steak bites to the skillet, searing for 3-4 minutes until browned. Remove the steak from the skillet.
Simmer the Sauce: Pour in 1 cup of heavy cream, stirring until it comes to a gentle simmer. Stir in 1 cup of Parmesan and 1/4 teaspoon of nutmeg until the cheese melts into a smooth sauce.
Combine the Stars of the Dish: Add the cooked pasta and seared steak bites to the skillet, tossing to coat in the sauce. Cook for an additional 2-3 minutes until heated through.
Serve and Garnish: Serve immediately with extra grated Parmesan at the table.
Notes
Pairs well with a green salad and garlic bread. Leftovers can be stored in the refrigerator for up to 3 days.