Roast broccoli and brussels sprouts slaw

• 1 small head of broccoli (about 300g), cut into florets
• 250g Brussels sprouts, trimmed and halved, reserve 3 for the slaw
• 1 tbsp olive oil
• 1 tbsp honey
• 1 tbsp miso paste
• 1 x 400g can cannellini beans, drained and rinsed
• 50g slivered almonds
• 1 small carrot, grated
• 1 small red onion, thinly sliced
• 2 tbsp fresh rosemary, leaves picked, some chopped

Zingy dressing:

• 1 tbsp honey
• 2 tbsp lemon juice
• 1 tbsp Dijon mustard

Optional garnish:

• Fresh herbs like parsley or coriander