Step 1Bring a medium-sized saucepan of water to the boil. Add barley and cook, uncovered, for 20 minutes or until tender. Drain and leave to cool for 5 minutes.
Step 2Thread 3 prawns onto each skewer. To make garlic oil, combine garlic with half of the oil in a small bowl. Heat a barbecue grill or set a chargrill pan over a high heat. Add prawn skewers and cook, turning once and brushing with garlic oil, for 3-4 minutes or until prawns are coloured and lightly charred.
Step 3Meanwhile, combine rocket, almonds, tomatoes, mint, feta and onion in a large salad bowl. Add cooked barley with lemon zest, lemon juice and remaining rice bran oil. Toss well to combine.
Step 4Serve grilled prawn skewers with barley and almond salad and extra lemon wedges.