Alright... since I just had some for lunch, here's a very easy and very versatile recipe: polenta.

The name Polenta is a contraption of the phrase "un po' lenta" ("a bit slow") because the recipe itself is disguistingly easy to make, but it takes a while to get done, because you have to keep mixing and mixing for quite awhile.
The ingredients:
- corn flour (can use legume flour too, but corn flour is preferable);
- water (about 2 liters for every 500g of flour);
- salt;
- olive oil;
What you do is, like I said... uber-easy. Put the water to boinl, in tin or steel pot, when it's nearly boiling you add the salt (about a spoon every 2 liters of water), and then gradually pour in the flour, mixing while you do with a wooden spoon. Add a smidge of olive oil too, it'll help preventing the flour to form lumps, and keep mixing until the compound doesn't boil. Once that happens put the stove's fire to the lower setting and keep mixing for about 40-50 minutes. Then you can pour it on the dishes, or on a wooden chopping board, if you want to serve it as one thing. Polenta is another of those dishes that was born as part of poor peasants' tradition and it can be eaten on its own, or be combined with pretty much every kind of sour ingredient or sauce:
With sausages and tomato sauce;

With mushrooms;
A very popular variation is the Polenta Taragna, which involves mixing in the polenta itself butter and cheese, and to use two different kinds of flour mixed togheter instead of one, usually corn flour and buckwheat flour. The procedure to make it is pretty much the same, and the result is of course a more cheesy and slightly stronger-tasted variation.

Also, you can make also make sticks/chips of polenta to serve as snacks or finger-food: all you need to do is prepare the polenta like already explained, then take a large backing tin, pour some olive oil on it, so that the compound won't stick to it, and smear the polenta all over it with a spatula, making sure is not ticker than 1 centimeter or so. Then flatten the top with a rolling pin or a similar tool, and put the tin in the fridge for a couple hours to coagulate. Once that time is passed, cut the polenta with a knife into sticks, fry them in oil until they look crunchy and browned, let them rest on some cooking paper to get rid of the excess of oil, and add a smidge of salt and spice, would recomment rosemary. And you're done:
Overally, it takes some patience because you need to spend alot of time mixing, but it's super-easy to do, and you can serve it with pretty much everything. It's a recipe extremely popular in the norther regions of Italy, and there's also readymade variations, much like with purees, that have additives that let it congeal and shape up much faster, but I don't know if thei're avaiable outside of my country, so I gave you the original recipe.