Pan-seared tuna and Asian greens with cucumber relish

Ingredients

• 500 grams Fresh tuna loin skin removed
• Olive oil extra virgin
• Sea salt
• freshly ground black pepper
• ½ cup rice vinegar
• 3 tablespoons Sugar
• 1 teaspoon Coriander seeds
• 1 teaspoon Yellow mustard seeds
• 1 small Red onion finely sliced
• 1 Trimmed bulb of fennel finely sliced
• ½ Cucumber peeled and finely sliced
• 4 Radishes finely sliced
• 4 Water chestnuts finely sliced
• ¼ cup Fresh coriander leaves,
• ¼ cup Fresh mint leaves
• A pinch of Cayenne pepper
• ½ teaspoon Minced bird’s eye chillies
• ½ teaspoon Garlic paste
• 1 Lime grated zest and juice
• 1 teaspoon Fresh grated ginger
• ¼ teaspoon Fish sauce
• 2 ½ tablespoon Light soy sauce
• 1 tablespoon rice vinegar
• ¾ teaspoon Toasted sesame oil
• 4 handfuls Asian greens for example, baby bok choi or pea shoots