Preparation Put oven rack in middle position and preheat oven to 400°F. Cut peppers into 1-inch pieces. Toss together all ingredients in a large roasting pan, then spread evenly. Roast, stirring occasionally, until vegetables are very tender, about 1 hour. Cool before serving. Cooks' note:Confit can be made 1 week ahead and chilled, covered. Bring to room temperature and stir before serving.
Preparation Put oven rack in middle position and preheat oven to 400°F. Cut peppers into 1-inch pieces. Toss together all ingredients in a large roasting pan, then spread evenly. Roast, stirring occasionally, until vegetables are very tender, about 1 hour. Cool before serving. Cooks' note:Confit can be made 1 week ahead and chilled, covered. Bring to room temperature and stir before serving.