Heat oil in a pan, saute garlic and add beef strips over it.
Cook till meat juices dries and its color changes.
Add Worchester sauce, black pepper crushed, green pepper, red chili paste, jalapeno, salt and lemons juice.
Slightly stir all.
Then add oregano and green onion, 2 - 3 minutes before dishing out.
Now cut the buns into half, fill in the mixture and garnish with salad leaves.
Serve it with chili garlic sauce.