In a casserole with a splash of oil, put all the vegetables made pieces. Garlic can be placed whole with skin. Frying a while it all together. Then add a couple of liters of water and cook, covered, a long time.
Once cooked, remove the pan from the heat, and carefully pass the mixer. Strain and return the juice to fire. When it boils pour lentils.
A half cooked, put salt and pepper (not be passed with pepper). Once the lentils are cooked, try to make them salt to taste. Otherwise add it believes appropriate. Close the heat, let stand a few minutes and serve.