Beef and pearl barley salad

Ingredients

• Pearl barley, raw, ⅓ cup(s)
• Baby spinach, 2 handful(s)
• Cherry tomatoes, 100 g, halved
• Lemon, ¼ lemon(s), juiced and zested
• Red onion, ¼ medium, finely diced
• Parsley, 1 teaspoon(s), finely chopped
• Coriander, 1 teaspoon(s) chopped, finely chopped
• Chilli flakes, 1 pinch(es)
• Garlic, 1 clove(s), crushed
• Olive oil, 1 teaspoon(s)
• White wine vinegar, 1 teaspoon(s)
• Beef, lean, roasted, 100 g, sliced