Seared tuna with puy lentil salad and sundried tomato relish

Ingredients

For the lentil salad:

• 250g bag of microwavable puy lentils
• 6 tbsp extra virgin olive oil
• Juice of a lemon
• 1 small red onion, very finely sliced
• 4 spring onions, finely sliced on the angle
• 4 tbsp chopped fresh flat-leaf parsley

For the tuna:

• 4 x 150g pieces of tuna fillet
• 1 tbsp light olive oil

For the sundried tomato salad:

• Large handful picked flat-leaf parsley
• 4 good quality sun-dried tomatoes , finely diced
• 1 tbsp of good quality small capers
• 1 tbsp cornichons, very finely chopped
• Juice of 1/2 lemon
• 4 tbsp extra virgin olive oil
• Malden sea salt and freshly ground black pepper