Swap it out
You can sometimes switch out more expensive ingredients altogether with cheaper alternatives.
If your recipe calls for a hint of citrus, buy a bottle of lemon or lime juice, rather than squeezing a fresh fruit: costing about the same, a small bottle will keep in your storecupboard for ages, and can be used again and again.
Want to reduce the amount of cheese you use? Buy a block of extra mature – you might end up using less, because its stronger cheesy flavour will go much further in your dishes. Plus, dried pulses and beans are more cost-effective than their tinned siblings, but can take a little more prep work.
Here's another helpful handful of budget swaps that'll reduce the cost of any meal.