Heat the oil in a skillet and add the cabbage.
Toss it about well, and cover.
Cook quickly for 5 minutes, stirring twice.
Add the onion and re-cover.
Reduce the heat and cook slowly for 45 minutes.
Add the zucchini and garlic, re-cover, and cook slowly for another 30 to 45 minutes.
Add more oil if needed.
Season to taste and cook for another 15 minutes.
Serve very hot with braised meats or boiled beef.
It is good with sausage also.
Makes 6 servings.