If you're buying meat, it's cheaper to buy the whole of a chicken, or a leg of lamb/joint of pork chop it up and freeze it. Portions cost more as you're paying for someone to cut it up for you. Cheaper cuts like chicken drum sticks are cheap because there's not much meat on them or because they need cooking for hours, so make sure you research what you're buying. Meals like beans on toast or jacket potatoes are fine. Don't eat lots of take aways, they are expensive and packed with salt, batch cooking (making extra) and freeze the excess is good for those days when you don't have time to cook, just whack it in the microwave. You don't need to eat meat every day, have a few days off. Frozen veg is just as nutritious as fresh and it's cheaper (and it lasts longer). Don't buy a lot of pre prepared foods, they work out more expensive then if you were to prepare and cook yourself. Markets are good for fresh fruit and veg if you're a veggie and want fresh, you can weigh out just what you need. You can freeze milk so if you go towards closing time and there's some on offer, go for it. Don't put bread in the fridge, it goes hard and nasty. Don't buy ice cream as someone else will eat it. Don't buy expensive frozen food, that will go walkies too.
Things you won't need for uni because everyone else will bring one with them, they are cheap to buy if no one has them;
Kettle
Toaster
Can opener
Bottle opener
Tea towels (unless you want your own)
Cheese grater
Wooden spoons
Kitchen towel
Sponges
Potato masher
Things to take a stash in your room (because your flat mates will trash/nick them);
Saucepans (you need a small one, like a milk pan, for baked beans, and a large one for pasta/potatoes etc)
Frying pan
Cooking knives
Coffee machine (if you want to take one, the kettle's cheaper though), keep the coffee in your room or locked away too
Cutlery
Baking tray
Don't bother taking a whisk, a fork usually works OK, don't bother taking a sieve (you can use the lid to drain water), don't bother taking a tea pot, just use a mug. Don't bother taking cake tins, people rarely cook a cake. Wine glasses will get broken easily so don't fork out too much. Don't bother taking an oven glove unless there isn't one when you get to Uni. Your flat/house will only need one and you can bet someone's gone OTT and can fit out the kitchen. Don't bother taking a wok unless you're a really good cook. A frying pan does the job just as well. Don't take a blender unless you're super healthy, it will never get used.
Slotted spoons are helpful. Plates, bowls, mugs are also helpful, but you won't need a whole dinner service. You'll need a flat cooking utensil so you can turn over things, and some silicone tongues. You'll need a padlock for your cupboard as most have locks on them. A potato peeler is useful. Chopping boards are a must!! Plastic ones are cheap, don't take expensive wooden ones as they will get trashed.