When: Sunday - 3pm

Where: At home

Even if the in-laws aren't coming over, your Sunday Roast can harbour some horrors. Choosing chicken over beef saves 197 calories per 140g portion. Shedding the skin sheds another 50, and going boiled spuds (22kcal per potato) rather than roast (45kcal per potato) claws back a further 92 for a standard four-spud portion. M&S Raspberry Pavlova (345kcal) instead of M&S Sticky Toffee Pudding (518kcal) cuts 173 calories per serving.

You put away: Chicken + boiled potatoes + raspberry pavlova

You save: 455 calories