Heat oven to 200C/180C fan/gas 6.
Place the cauliflower, garlic and bay leaves in a large bowl, toss with the oil, zest and juice and season generously.
Spread evenly onto a baking sheet (use 2 if you need to).
Roast for 20 mins, turning halfway, until al dente and caramelised.
Serving Size 8 servings (as a side)