Beef chow mein

Name: Beef chow mein
Cook time: 50 min
Total time: 50 min
Cuisine: Asian
Ingredients: 1 tablespoon vegetable oil; 500 gram minced beef; 1 medium brown onion, finely chopped; 2 clove garlic, crushed; 1 tablespoon curry powder; 1 large carrot, finely chopped; 2 celery stalks, trimmed, thinly sliced; 150 gram thinly sliced button mushrooms; 1 cup chicken stock; 1/3 cup oyster sauce; 2 tablespoon dark soy sauce; 440 gram thin fresh egg noodles; 1/2 cup frozen peas; 1/2 wombok (napa cabbage), coarsely shredded