[Recipe] Shelled Mussels with Ginger and Spring Onions in Oyster Sauce

I saw some precooked frozen shelled mussels in the grocery yesterday and I thought of cooking some mussels in oyster sauce. It turned out quite nice so I'm sharing the recipe here. I suppose this would work even with fresh mussels on the shell but the cooking time and taste might vary. Fresh mussels tend to release juices when opening up while cooking that has a distinct taste that is sadly lacking from what I have made.

Ingredients:
500 grams precooked shelled mussels
Ginger about 2 fingers size, cut into strips
2 cloves garlic, minced
1 bunch Spring Onion cut into 2 inch segments
1 small can of cut button mushrooms
5 Tablespoons Oyster Sauce
1 Tablespoon vegetable oil
Ground black pepper to taste

Directions:
Thaw mussels and set aside. In a wok, heat vegetable oil and saute minced garlic until light brown. Add in the spring onion, ginger strips and mushrooms. Add the pepper and oyster sauce while continuously stirring. Add the mussels and stir until mussels are completely mixed in. Lower the flame and let simmer for about 5 minutes.