Mix the marinade ingredients in a small bowl and rub the marinade onto cauliflower head evenly until well coated. Place cauliflower on a baking tray and bake for 50 minutes.
Mix mustard, pesto, olive oil and lemon juice in a small bowl. Remove cauliflower from the oven and brush cauliflower with mustard and pesto sauce evenly. Serve whole cauliflower with the remaining sauce in a separate serving sauce plate.
When Planet Organic opened its doors in 1995, it was Renée Elliott's dream to offer the best and widest range of organic foods available, and her mission to promote health in the community and to bring a sense of discovery and adventure into food shopping.