Beef lagyan ng bell pepper tiyak kang magugulat ka sa pangrestuarant na lasa

Ingredients:

• 2 lbs beef, thinly slice
• 4 tbsp oyster sauce
• 2 tbsp cornstarch
• 1 tbs salt
• 1/2 tsp black pepper red bell pepper green bell pepper
• 1/2 cup water
• 1/2 cup cooking oil
• Ginisa mix seasoning (optional)