Season beef with salt and pepper.

Add vegetable oil to the pressure cooker pot and select the MEAT setting.

When oil begins to sizzle, brown meat in batches until all meat is browned, ensuring not to overcrowd the pot.

Transfer the browned meat to a plate.

Add minced garlic to the pot and saute for 1 minute.

Add soy sauce, 1/2 cup water, dark brown sugar, and ground ginger to the pot. Stir to combine.

Add the browned beef and any accumulated juices back into the pot.

Select the Meat setting for 20 minutes.

Once the pressure cooker beeps, turn it off and use a quick pressure release.

When the valve drops, carefully remove the lid.

In a small bowl, combine cornstarch and 3 tablespoons of water, whisking until smooth.

Add the cornstarch mixture to the sauce in the pot, stirring constantly.

Select the Saute setting and bring the sauce to a boil, stirring constantly until it thickens.

Stir in sliced green onions before serving.