Black Pepper Beef Fillet Pasta

Overview

I suddenly felt like eating it today, so I made it.

Prepare materials. Cut beef into strips, pickle one white onion with oil, salt and black pepper, cut into small slices
Boil half a pot of water. After the water boils, add salt first. Be sure to add salt first. Add an appropriate amount of noodles and cook for 10 minutes until cooked through.
Bring to a boil and put a small piece of butter in the pot (other cooking oils are also ok)
Pour in the beef and stir-fry until cooked.
Add onions and stir-fry. Add salt, a little soy sauce, and pasta sauce. Remove the pasta from the pot, mix well, and serve on a plate. (Originally, I took a photo of the noodles being put into the pot, but after I finished it, I realized that my hands were shaking and the photo was high)😂
Finished product.