Seared beef with asparagus stir-fry

Ingredients

• 1 x 350g sirloin steak
• 1 tbsp vegetable oil
• 3 tbsp fish sauce
• 1 tsp palm, muscovado or brown sugar
• ½ tsp grated ginger
• 1 clove of garlic, crushed
• 1 clove of garlic, thinly sliced
• 2cm dice of ginger, finely chopped
• 3 spring onions, finely sliced
• 300g asparagus, sliced into bite-sized pieces
• 100g mangetout, trimmed of stalks
• 2 red chillies, finely sliced
• 2 tbsp crushed cashew nuts
• 1 lime, quartered
• 12 leaves of Thai or Mediterranean basil
• White rice