I freeze leftover mash/ homemade soup in a 12 hole muffin/fairy cake tray wrapped in cling film. Once frozen, leave out for 5 mins then scoop them all out with a knife and put in a freezer bag and back in the freezer. Individual portions and saves space.
I came to England many, many years ago and au paired for a concert pianist on a very tight budget. I was suddenly responsible for cooking and feeding 3 people, never having done this before. Thankfully I remembered mama's stockpot! One huge pot, a marrow bone and lots of fresh vegetables. It was my lifesaver! Why buy expensive ready meals with all those additives? If you are on a really tight budget try it. There are a thousand variations, all delicious and wholesome!