Spicy tuna with lemon and herb couscous

Ingredients

• 2 tuna steaks, cut into chunks
• 2 tbsp harissa paste
• 1 tsp Sweet Freedom (either)
• juice of 1 lemon
• 100g couscous
• 1 clove garlic, grated (optional)
• 1 large handful fresh herbs, finely chopped
• 2 spring onions, finely chopped
• 1 tsp freshly ground black pepper
• lemon wedges to serve

Instructions

1. Put the tuna in a bowl and cover with the harissa paste, Sweet Freedom and 1 tbsp lemon juice, squish it about a bit so it's all well covered, and leave for 10 - 15 minutes.
2. Cook the couscous as per the packet instructions, using vegetable stock with the garlic stirred in. 
   
3. Thread the tuna onto skewers and grill for a minute each side.
4. Stir the chopped herbs, spring onion, the rest of the lemon juice and the black pepper into the couscous.
5. Serve with lemon wedges.