Roasted pork with warm kimchi and kale salad

Name: Roasted pork with warm kimchi and kale salad
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: Asian
Ingredients: 1½tbsp reduced-salt soy sauce; 1tbsp mirin or sherry; 2 garlic cloves, crushed; 600g lean pork fillet, fat trimmed; 1tbsp olive oil; 1 medium red onion, thinly sliced; 200g kale, leaves trimmed, chopped; 125g beansprouts; 100g kimchi, coarsely chopped; 250g steamed green beans; 2tsp toasted sesame seeds, to garnish