Beef Braised in Red Wine

3 slices bacon lean, chopped

1 teaspoon garlic minced

1 teaspoon oregano crumbled

1/2 teaspoon salt

1/4 teaspoon black pepper fresh ground

1 tablespoon margarine

1 tablespoon olive oil

1/2 cups onion chopped

1/4 cup carrots chopped

1/4 cup celery chopped

1/2 cup red wine dry

2 cups beef stock prefer veal stock if possible

1 1/2 cups tomatoes, canned coarsely chopped, or purreed

1 each bay leaf

2 tablespoons butter soft, optional

2 tablespoons flour, all-purpose optional