Put the rice into a strainer and wash it well, after that, cover the rice with boiling water and add the salt, mix well and let it rest for 15 minutes.
In a pan, place the diced meat and cover the pan, let it cook in its own juices, when the juices begin to rise, uncover the pan and stir, let it cook until the juices dry up.
Meanwhile, peel the carrot and cut it into dices.
Get the rice that was setting aside, drain it, transfer it to a large bowl and add the carrots, the sweet corn and the peas, mix very well. Set aside.
Once the meat juices have dried, add 80g of butter and stir, add the garlic, the onion, mix well, add the tomato paste, oregano, black pepper, chili flakes and salt, mix well again.
Try to leave the meat as flat as possible in the pan, pour all the rice over the meat and spread it out evenly, to make it flat as well.
Keep the heat on low and add the boiling water.
Cut the butter into dices and spread it all over the pan, cover the pan and let it boil until the water is just below the level of the rice (boiling time can vary from 5 to 10 minutes).
Turn off the heat and set the pan aside for 40 minutes.
Flip it onto a plate and serve.