Food is expensive and unfortunately isn't getting any cheaper - have you seen how much a Freddo bar costs nowadays?
With that in mind, here are some perhaps surprising ways to cut your time and money in the kitchen.
Baking foil is dirt cheap so grab some from the pound shop and make good use of it! Cover your baking trays in it to avoid having to clean up as often and use them as plates for things like baked potatoes.
Get some toastie bags
Don't even think of buying that sandwich toaster that you'll probably never use after one week. Buy some much cheaper reusable toastie bags which you can quickly and cleanly slip into your toaster without the need to clean. And again, there's no need for a plate as you can nibble on your snack right from the packet... just let it cool down first!
Don't (always) bother with peeling
Peeling can be painstaking and often ends up in a lot of mess and cut fingers, so don't bother if you don't have to. Root veg like carrots, parsnips and potatoes especially can be just as tasty with the skin on, just make sure you give them a good wash!
The cheese grater box
Buy frozen veg
Frozen veg is generally seen as less healthy than its fresh equivalent but it's not the case. When frozen veg is cheaper, ready prepared and lasts for much, much longer then it's a wise choice to keep some in the freezer.
Get used to batch cooking
Plan and cook your meals in advance using batch cooking. Preparing your future meals will not only save you money and make your future self very thankful, it'll almost certainly help improve your diet too.
Keep an eye on what's in the fridge
Cook with what you've got by keep an eye on what's in your fridge and cupboards that may be soon going out of date. If you're not going to eat it, freeze it if you can or give it away to someone - just don't leave yourself forced to chuck it out.
Buy a wok
... and learn how to make a good stir fry. Stir fries are blisteringly quick one-dish meals that, in reality, can include whatever you want. They're a great way for using up left overs and can be easily scaled up and down for just the one person or the whole flat, size of wok permitting!