Step 1

Whisk together stock, oyster sauce, soy sauce, ginger paste, pepper paste, garlic, and cornstarch in a small bowl.

Step 2

Heat a large skillet over high heat. Add 1 tablespoon oil and shake or swirl the skillet to coat bottom with oil.

Step 3

Add beef and stir-fry until just browned but not cooked through. Transfer beef to a plate and discard liquid and oil from the skillet.

Step 4

Return the skillet to high heat. Add remaining 1 tablespoon of oil and shake or swirl the skillet to coat the bottom with oil.

Step 5

Add asparagus and bell pepper. Stir-fry for 1 to 2 minutes. Add green onions and stir-fry for 30 seconds.

Step 6

Add stock mixture and stir to coat vegetables. Cook until sauce is slightly thickened, about 1 minute.

Step 7

Add beef and any beef juices back to the skillet. Toss and cook for 1 minute. Serve immediately.