Mint is not widely used in Italian cooking. In Sardinia, however, there are several dishes that make use of mint, probably because it grows everywhere.
Fry the garlic gently in the oil in a saucepan over medium-low heat until the garlic is pale golden. Turn the heat up to medium and brown the meat.
Add the wine to the pan, and boil briskly for 3 minutes. Add the tomatoes and tomato purée and season with salt and pepper. Lower the heat and simmer, uncovered, for 45 minutes.