Stir-Fried Round Beef with Mushrooms and Vegetables in Soy Sauce

Cut the round beef, mushrooms, onion, and bell pepper into bite-sized pieces.

Heat cooking oil in a pan and stir-fry the beef.

When the beef is half cooked, add the mushrooms and vegetables and continue stir-frying.

Season with soy sauce and pepper to taste.

Once all the ingredients are cooked, turn off the heat and transfer to a plate.