Add beef, prawns, and carrot to the pan and continue stir-frying for 6 to 7 minutes before adding the cubed tomato. Fry another 3 to 4 minutes, add cabbage and cook till wilted before adding pasta. Drizzle in the sauce mixture gradually to season and moisten. Cook on high heat for 5 minutes, taste for seasonings, and serve hot, garnished with the shredded omelette.