Step 1: Preheat the Oven
Preheat your oven to 200°C (180°C fan), Gas Mark 6.
Prepare two baking trays, one for the chicken and one for the roast potatoes.
Step 2: Prepare the Roast Potatoes
Place the potato chunks in a saucepan of cold water.
Bring to the boil and simmer for approximately 8–10 minutes, until the outside edges begin to soften.
Drain thoroughly and shake the potatoes gently in the colander to roughen their surfaces.
Transfer to a baking tray, add the measured olive oil, rosemary, garlic granules and seasoning, and toss to coat.
Roast for approximately 40–50 minutes, turning halfway through, until golden and crisp.
Step 3: Season the Chicken
Place the chicken breasts in a baking dish.
Rub with the olive oil, thyme, rosemary, garlic granules, paprika and black pepper.
Cover loosely with foil for the first part of cooking if needed to prevent drying out.
Roast for approximately 25–35 minutes, depending on thickness, until the thickest part reaches at least 75°C.
Rest for 5 minutes before slicing.
Step 4: Prepare the Stuffing Balls
Lightly coat a non-stick frying pan with cooking spray.
Cook the diced onion for approximately 5 minutes until softened.
Transfer to a bowl and mix with the breadcrumbs, sage, thyme and beaten egg.
Add a little vegetable stock, one tablespoon at a time, until the mixture holds together.
Shape into four stuffing balls.
Place on a lined baking tray and bake for approximately 20–25 minutes until golden and cooked through.
Step 5: Make the Mashed Potatoes
Place the potatoes in a saucepan and cover with cold water.
Bring to the boil and simmer for approximately 15–20 minutes until completely tender.
Drain thoroughly.
Mash with the skimmed milk, adding a little at a time until smooth and fluffy.
Season with salt and black pepper.
Step 6: Cook the Swede
Place the diced swede in a saucepan of boiling water.
Simmer for approximately 20–25 minutes until tender.
Drain well and mash with a fork or potato masher.
Season lightly.
Step 7: Prepare the Vegetables
Steam or boil the carrots for approximately 8–12 minutes, depending on thickness.
Cook the broccoli for approximately 4–6 minutes until tender but still bright green.
Steam the shredded Savoy cabbage for approximately 4–6 minutes.
Avoid overcooking to preserve the vegetables’ texture.
Step 8: Prepare the Yorkshire Puddings
Prepare and bake four Yorkshire puddings according to your chosen recipe.
For the best results, cook them while the chicken is resting, adjusting the oven temperature if your Yorkshire pudding recipe requires a hotter oven.
Step 9: Make the Gravy
Prepare 400ml of reduced-salt chicken gravy according to the product instructions.
Heat until piping hot.
For extra flavour, stir in a small amount of the chicken cooking juices after removing excess fat.
Step 10: Assemble Your Sunday Roast
Divide the sliced roast chicken between four plates.
Add a portion of crispy roast potatoes, fluffy mashed potatoes and mashed swede.
Arrange the carrots, broccoli and Savoy cabbage alongside.
Finish each plate with one stuffing ball and one Yorkshire pudding.
Spoon the hot gravy over the chicken and potatoes.
Serve immediately.
Tips for the Best Roast Dinner
Keep the Chicken Juicy
Avoid overcooking chicken breasts. Use a food thermometer to check the thickest part and allow the meat to rest before slicing.
Get Crispy Roast Potatoes
Parboiling and roughening the potato edges helps create a crisp exterior, even when using a smaller amount of oil.
Use Plenty of Vegetables
A generous serving of non-starchy vegetables adds colour, texture and variety to your plate.
Measure Added Fats
Using measured amounts of oil makes the recipe easier to track when following a structured eating plan.
Prepare Components Ahead
Peel the vegetables and prepare the stuffing mixture in advance. Refrigerate promptly until ready to cook.
Making This Roast Dinner More Slimming-Friendly
This recipe uses several lighter cooking choices while keeping the traditional Sunday roast experience.
- Use skinless chicken breasts rather than chicken with the skin.
- Roast potatoes with a measured amount of oil instead of generous quantities of fat.
- Make mashed potatoes with skimmed milk rather than butter.
- Steam or boil vegetables without adding butter.
- Prepare individual stuffing portions to make serving sizes easier to manage.
- Check the values of Yorkshire puddings, gravy and any packaged ingredients.
If you’re following Slimming World, use the latest official member guidance to calculate the allowances and values for your specific ingredients.
This is an independent recipe and is not affiliated with or endorsed by Slimming World.
What to Serve with Roast Chicken Dinner
This meal already includes a generous selection of sides, but you can adjust the vegetables to suit your preferences.
Other traditional options include green beans, garden peas, roasted parsnips or Brussels sprouts.
Storing Leftovers
Refrigerating
Allow leftovers to cool promptly and refrigerate within two hours.
Store cooked chicken, potatoes and vegetables in airtight containers for up to 2 days.
Freezing
Cooked chicken, stuffing and gravy can be frozen separately for up to 3 months for best quality.
Mashed potatoes can also be frozen, although their texture may change after reheating.
Reheating
Defrost frozen leftovers safely in the refrigerator.
Reheat thoroughly until steaming hot throughout.
Avoid repeatedly reheating the same portion.
Frequently Asked Questions
Can I make a Sunday roast without lots of oil?
Yes. Parboiling the potatoes before roasting and using measured oil can help produce golden roast potatoes with less added fat.
Can I use chicken thighs instead of chicken breasts?
Yes. Skinless, boneless chicken thighs are an alternative, although cooking times and nutritional values will differ.
Can I prepare this roast dinner ahead of time?
Yes. Prepare the vegetables and stuffing mixture in advance, then cook and assemble the meal when ready to serve.
Are Yorkshire puddings included in this recipe?
Yes. Serve one Yorkshire pudding per person, using your favourite homemade recipe.
Is this roast chicken dinner suitable for Slimming World?
It can be adapted for people following Slimming World, but not every ingredient is automatically included in an unrestricted allowance. Check the latest official guidance for oil, breadcrumbs, Yorkshire puddings, gravy and any other additions.
Can I make this dinner without stuffing?
Absolutely. Simply leave out the stuffing balls and serve the chicken with potatoes, vegetables, Yorkshire pudding and gravy.
Final Thoughts
A traditional British roast dinner doesn’t have to rely on large amounts of butter or oil to taste delicious.
This healthy roast chicken dinner combines juicy chicken, crispy potatoes, comforting mash, colourful vegetables, stuffing and gravy into one satisfying family meal.
It’s a lovely way to enjoy the flavours of a classic Sunday roast while making thoughtful choices about ingredients and portion sizes.


