6. Greek yogurt, eggs, and cheese
There is no more versatile dairy product than Greek yogurt. Check out how long the product can be used and if you see that you can store it for three or four weeks, buy lots of it in advance. Yogurt can be used to prepare various sources. You can also add them to toppings and dressings. Some might like shakes with Greek yogurt. This product tastes fantastic on its own. If that sounds too boring, add some honey, cinnamon, fruits or seeds.