Tesco chicken casserole

This chicken casserole is small but surprisingly filling, and comes in at just 232 calories.

M&S lamb hotpot

From the Marks & Spencer mini meal range, a small but perfectly formed hotpot weighing in at 214 calories.

Bachelors Minestrone

A filling snack with croutons, great for a mid-afternoon low, at just 53 calories.

M&S Steak casserole

How can a steak casserole, complete with dumpling, be a low calorie meal? By making it very small. Still a filling lunch at just 260 calories.

Miso soup

No-one could describe miso soup as a filling meal, but it’s a quick and easy filler – you just add boiling water. But they are just 21 calories.

Chicken noodle soup

Diet chicken noodle soup isn’t one for food purists: it’s got more E numbers than noodles, but at 39 calories, it’s worth it.