I’m fortunate enough to not be in a position where money is tight for food, but re: beans and rice, I absolutely love my instant pot!
Mexican-style beans are, IMHO, delicious, easy to make, and dirt cheap. I love them, our toddler loves them, and it’s easy on the wallet. Dry beans are really affordable, and a 25lb bag of rice is great to have in the pantry (note: careful with bulk brown rice as I think it can go rancid). A stove and a pot can do both, but an instant pot and a rice cooker makes it so easy.
I also drink a fair amount of coffee, but again, bulk or even just “make coffee at home” is very affordable. A few cups at Starbucks costs the same as a pound of beans (which yields many cups).
Back in the day I was running GLTron on an Athlon 1800+ w/Nvidia GeForce FX 5200 (I think?) and I was running dual monitors. GLTron didn’t like using both screens since it presented as a peculiar resolution. So I emailed the GLTron dude and he quickly emailed me a patch that let me run the game across both monitors (bezels not an issue because I was doing multiplayer split screen).
What a great game.