Ingredients
Metric and US measurements are approximate conversions; ingredient densities vary. Double-check temperatures and cooking times when changing portions.
Method
Heat oven to 210°C (190°C fan). Line a large roasting tray; spread potatoes and vegetables out in a single layer.
Toss with olive oil, seasonings and flavour ingredients, using only the zest initially if adding lemon.
Roast the vegetables for 25 minutes, turning halfway.
Add halloumi slices and roast 10 minutes more, until the cheese is lightly coloured and potatoes are tender.
Finish with lemon juice if using and serve hot.
Food safety: ensure poultry is fully cooked, handle raw meat separately, and check packaging for allergens. Times are estimates and ovens vary.