Take vegetable oil and beef in a medium pot and turn the heat to medium high. Cook it until the beef absorbs all of its juice, stirring occasionally. Add tomato and pepper paste. Stir and cook for 5 minutes. Add boiling water and orzo in to the pot and bring it to the boil. Turn the heat down to low. Cover the lid and simmer it for 25 minutes and turn the heat off. Add chopped parsley and salt. Stir and cover the lid. Let it rest for 10 minutes before serving.