Veggie yaki udon

Name: Veggie yaki udon
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: Japanese
Ingredients: 1½ tbsp sesame oil; 1 red onion cut into thin wedges; 160g mangetout; 70g baby corn halved; 2 baby pak choi quartered; 3 spring onions sliced; 1 large garlic clove crushed; ½ tbsp mild curry powder or use 1 tsp garam masala; 4 tsp low-salt soy sauce; 300g ready-to-cook udon noodles; 1 tbsp pickled sushi ginger chopped, plus 2 tbsp of the brine, optional