How many calories in a roast dinner? By meat, trimmings and plate

A Sunday roast looks like a balanced plate. There is a piece of meat, a pile of vegetables, some potatoes and a bit of gravy. It feels like the textbook dinner.

The numbers tell a different story. On a typical home plate, the meat is about a third of the calories, and the potatoes, Yorkshire and trimmings are half. The vegetables, which take up the most room, are about a tenth.

The quick answer

A home roast chicken dinner, item by item.

The chicken figures come from the chicken breast breakdown and the roast potatoes from the potato breakdown, so the numbers line up across the Journal. The meat and fat figures are consistent with USDA FoodData Central.

The meat, per 100g and per portion

Cooked weight, sliced, with a 150g portion as a generous home serving.

Two rows are worth pausing on.

Chicken skin is the cheapest saving on the plate. Taking it off a 150g breast saves 82 kcal and changes nothing else about the meal.

Nut roast is not the light option. At about 250 kcal per 100g, a slice is heavier than every white meat on the list, because it is built from nuts, breadcrumbs and oil. It is a perfectly good dinner. It is not a diet swap.

The trimmings, which are the real number

The boiled vegetables are close to free: three portions of carrots, broccoli and greens together come to about 64 kcal, and each 80g serving counts as one of your 5 A Day. The roast potatoes do not, because the NHS does not count potatoes as a vegetable portion. Parsnips do.

Goose fat, oil and why it does not matter which

Goose fat has a reputation as the indulgent choice for roast potatoes. Per gram it is the same as any other cooking fat, at about 900 kcal per 100g, which is what both the USDA entry for goose fat and the olive oil breakdown show.

What changes the number is how much fat ends up on the potato:

• Roughed-up edges hold more fat. Parboiling and shaking the potatoes in the pan gives crisp edges precisely because the rough surface catches fat.
• Smaller pieces hold more fat per gram. More cut surface for the same weight of potato, the same geometry the fish and chips breakdown uses to explain chip shop chips.
• Fat left in the tray stays in the tray. Lift the potatoes out with a slotted spoon and the excess is not on your plate.

So the swap from goose fat to oil saves nothing. Using a tablespoon of fat for the tray instead of three does.

The Yorkshire pudding

A Yorkshire is made from flour, eggs and milk, cooked in a very hot tin of fat. Per gram it is about 290 kcal per 100g, twice the density of a roast potato. It does not feel heavy because it is mostly air.

Two homemade Yorkshires are about 144 kcal, the same as two slices of bread. That is a fair price for the best part of the plate. The giant pub version is a different thing: at about 232, it costs more than four roast potatoes before anything goes in it.

Gravy, and the one decision that matters

Granule gravy is one of the lightest things on the plate. Gravy made from the roasting juices is lovely and only costs more because of the fat floating on top. Pour the tin juices into a jug, let the fat rise for two minutes, and spoon it off before making the gravy. That one step is worth about 50 kcal a pour.

The plates people actually eat

The carvery is the one that surprises people. Nothing on it looks unusual. It is a bigger slice of meat, two more roast potatoes, a giant Yorkshire and three or four extras, and it ends up 593 kcal above the home plate. A BMJ study of UK restaurant chains found the average main meal was 977 kcal, so a carvery plate is more than half as much again as an already heavy restaurant main.

The lighter home roast is the useful row. It keeps the chicken, the Yorkshire, the stuffing and the gravy, and drops 235 kcal through three changes nobody at the table would notice.

UK and US words that trip up logging

• Roast dinner, Sunday roast, Sunday dinner. All the same plate. An American "pot roast" is a slow braise of beef with vegetables, a different dish with different numbers.
• Yorkshire pudding. Closest US relative is the popover, made from a similar batter. "Pudding" here has nothing to do with dessert.
• Stuffing. UK stuffing is usually a separate ball or tray of breadcrumb, onion and sage, or sausagemeat. US stuffing or dressing is often a looser, buttery bread dish served by the scoop, which is usually a bigger portion.
• Gravy. UK gravy is a thin brown meat gravy. In the US, "gravy" can also mean the thick white sausage gravy poured on biscuits, which is several times denser.
• Swede. The orange root mashed with carrot is a rutabaga in the US. In Scotland it is often called neeps, or turnip.
• Carvery. No real US equivalent. The closest is a buffet carving station.

Roast dinner mistakes to avoid

Logging the chicken and nothing else

The meat is a third of the plate. A log that says "roast chicken, 150g" is missing about 600 kcal of potatoes, Yorkshire, stuffing and parsnips.

Counting the roast potatoes as a vegetable

They are the second biggest number on the plate and they do not count towards your five a day. Log them like chips, by weight or by piece.

Choosing goose fat or oil as the healthy decision

They are the same calories per gram. The amount is the decision.

Assuming the vegetarian roast is lighter

A 150g slice of nut roast is about 375 kcal, against 248 for skinless chicken breast. Same trimmings, heavier plate.

Three ways to keep the roast and lose the excess

The lighter Sunday roast (703 kcal)

• 150g skinless chicken breast (248 kcal)
• 3 roast potatoes, lifted out of the tray (172 kcal)
• 1 homemade Yorkshire pudding (72 kcal)
• Stuffing ball (56 kcal)
• Carrots, broccoli, peas and greens (120 kcal)
• 100ml gravy from granules (35 kcal)

Adds up to: about 703 kcal and over 50g of protein. Every part of a roast dinner is still there.

The turkey and two Yorkshires (660 kcal)

• 150g skinless turkey breast (225 kcal)
• 2 homemade Yorkshire puddings (144 kcal)
• 2 roast potatoes (114 kcal)
• Carrots, sprouts and peas (104 kcal)
• Cranberry sauce, 1 tbsp (23 kcal)
• 100ml gravy, fat skimmed (40 kcal)
• Mustard or horseradish, 1 tsp (10 kcal)

Adds up to: about 660 kcal. Trading two roast potatoes for a second Yorkshire costs almost nothing and makes the plate feel more generous, not less.

The carvery, ordered carefully (about 750 kcal)

• Turkey or lean beef, normal portion, no crackling
• 3 roast potatoes, not 6
• One normal Yorkshire, not the giant one
• Load up on carrots, greens and peas
• Gravy on the meat, not over the whole plate

Adds up to: roughly 750 kcal, depending on the portion the carver gives you. It is still a big meal, but it is about 780 lighter than the default plate.

The verdict

A home roast chicken dinner is about 938 kcal, and a pub carvery about 1,531. The meat is roughly a third of the plate. The roast potatoes, Yorkshire, stuffing and parsnips are half of it.

The cheapest wins are taking the skin off the chicken, having three roast potatoes instead of four or six, and skimming the fat before making the gravy. Together they take the home plate to about 700 kcal without removing anything anyone would miss.

If you change one thing, count your roast potatoes before they go on the plate.

Pairs well with: how many calories in a potato, the chicken breast calorie breakdown, and the sausage calorie breakdown.