Melt a spoonful of butter (from the total amount) and fry the minced meat over high heat. In the process of baking, break the minced meat into very small pieces, actively working with a spatula! At the end, add salt and pepper. Cool to a warm state.
If you did not manage to finely chop the minced meat, then you can scroll it through a meat grinder with a large (!) grate. It will take a little more time, but the end result will please with a more uniform texture!