Whole Roasted Cauliflower Cheese and Onion

Ingredients

• 1 cauliflower, leaves removed and stem trimmed flat
• 1 tbsp Dijon mustard
• 1 tbsp rapeseed oil
• 2 garlic cloves, peeled and diced
• 80g mature Cheddar cheese, grated
• 40g vegetarian Parmsesan style cheese, grated
• 1 small packet of flat leaf parsley, leaves finely chopped
• 20g crispy fried onions
• Freshly ground black pepper