If you plan in advance, this case will take a little time. You need to know in advance how much you are about to receive guests. You can find out from friends and acquaintances what dishes they prefer, so it will be easier for you and there will not be any extra food left. After when you learned about preferences, then compare them with your personal plans and budget. Make several purchase lists. On the first write down all those dishes that are going to be cooked, and on the second write down all the ingredients that you need to buy. If something from the list you have at home, then cross out the second. After you finish, how much you need to buy and how much it will cost.
Try not to cook anything superfluous, as it can stay and deteriorate. If something ends, it's easier to do it again. Do not cook much hot, as many people prefer snacks on this day. It even happens that they do not reach dessert.
Do not prepare complicated and long dishes that take you a long time.
Do not buy all products at once. Buy only those that do not go bad for a long time (canned food, drinks). And at last leave perishable products (cheese, sausage, dairy products). If you have helpers, you can buy a larger half of the products at a time.
For cooking, do not use all the equipment, as this will not speed up the process. Replace some of the technology with your hands. You can cook meat beforehand or put it in a marinade.
Simple meals are prepared quickly and conveniently. They spend little time. First try to cook hot dishes, and snacks and salads in the end. When cooking vegetables, salt slows down the readiness process. And the acid makes some dishes juicier (meat) and a little stops the process of cooking vegetables.
But the easiest option is to order everything in shops or in restaurants. Just buy everything ready. But when buying a ready-made product, you need to monitor the expiry date and quality. It all depends on you, how you want to celebrate the New Year.