Green Garlic Chili

3 pounds fresh pork, cubed in small pieces or coarsely ground
1/2 cup olive oil
3 cloves fresh garlic
Salt and white pepper to taste
1 large onion
6 to 8 fresh New Mexico green chiles or
    2 to 4 small cans whole green chiles, chopped
3 large fresh, home grown green tomatoes

Heat oil in heavy Dutch oven or stainless pot. Cook pork until it is white and braised on all sides. Remove pork from pot. Saut