Pearl barley salad

Ingredients

• 1 large beetroot, peeled, cut into wedges
• 1 medium brown onion, cut into wedges
• 2 teaspoon olive oil
• 200 gram broccoli florets
• 1/2 cup pearl barley
• 1 tablespoon tahini
• 1 tablespoon warm water
• 1 tablespoon lemon juice
• 1/2 cup fresh flat-leaf parsley through warm barley.