Steps
1. Cook the pasta according to package instructions until al dente. Drain and set aside.
2. In a skillet, melt the butter over medium heat. Add the beef slices and season with salt and pepper. Sauté until browned, about 3-4 minutes.
3. Add the diced fish to the skillet and cook for an additional 2-3 minutes until the fish is cooked through.
4. Toss the cooked pasta into the skillet with the beef and fish. Mix well to combine all the flavors.
5. Remove from heat and sprinkle the grated cheese on top. Stir until the cheese melts slightly.
6. Serve hot, garnished with fresh herbs if desired.