Each ingredient’s weight is multiplied by its USDA FoodData Central values per 100 g. The whole recipe is added up and divided by 6. Raw weights are used for meat, fish and vegetables; beans and lentils are drained weights. All of the oil is counted as eaten. Added salt is not included; sodium from stock, bread, cheese and tinned food is.
Calculation, whole recipe| Ingredient | Weight used | Source | Energy | Protein |
|---|
| olive oil | 9 g | FDC 171413Oil, olive, salad or cooking | 80 kcal | 0.0 g |
|---|
| lean beef mince | 500 g | FDC 173110Beef, ground, 93% lean meat / 7% fat, raw | 760 kcal | 104.3 g |
|---|
| onion | 150 g | FDC 170000Onions, raw | 60 kcal | 1.7 g |
|---|
| carrot | 150 g | FDC 170393Carrots, raw | 62 kcal | 1.4 g |
|---|
| celery | 100 g | FDC 169988Celery, raw | 14 kcal | 0.7 g |
|---|
| garlic | 15 g | FDC 169230Garlic, raw | 22 kcal | 1.0 g |
|---|
| dried oregano | 1 g | FDC 171328Spices, oregano, dried | 3 kcal | 0.1 g |
|---|
| tomato purée | 30 g | FDC 170459Tomato products, canned, paste, without salt added (Includes foods for USDA's Food Distribution Program) | 25 kcal | 1.3 g |
|---|
| chopped tomatoes | 800 g | FDC 170051Tomatoes, red, ripe, canned, packed in tomato juice | 128 kcal | 6.3 g |
|---|
| red lentils | 120 g | FDC 174284Lentils, pink or red, raw | 430 kcal | 28.7 g |
|---|
| beef stock | 305 g | FDC 172883Soup, stock, beef, home-preparedCalculated with FoodData Central's home-prepared beef stock. Bought stock and stock cubes carry more salt. | 40 kcal | 6.0 g |
|---|
| spaghetti | 360 g | FDC 169736Pasta, dry, enrichedFoodData Central records dry pasta as one entry rather than by shape. | 1336 kcal | 46.9 g |
|---|
| Parmesan | 30 g | FDC 170848Cheese, parmesan, hard | 118 kcal | 10.7 g |
|---|
| Whole recipe | | Divided by 6 | 3076 kcal | 209.0 g |
|---|
Per serving the energy is rounded to the nearest 5 kcal, grams to the nearest whole gram and sodium to the nearest 10 mg. of which sugars could not be calculated, because one ingredient’s record does not cover it; the row above says which. Calculation method 1.0, September 2026. How the calculation works.