Mix beef ribs with marinade. Combine seasoning mix ingredients in a bowl.
Heat oil in a pan and fry the beef ribs until cooked through. Dish out and set aside.
Add in shallots, onions and capsicums into the pan and stir-fry for 1 min. Add beef ribs back to the pan and stir in seasoning mix. Cook until heated through.
Transfer to a serving plate and serve with steamed rice.