Turkey 'a la King

      Total time : 40 minutes               Makes 6 servings

4                   tablespoons unsalted butter
1                   medium onion, cut into 1/4-inch dice
2                   celery ribs, cut into 1/4-inch dice
2                   carrots, cut into 1/4-inch dice
1/2                red bell pepper, cut into 1/4-inch dice
1/2                yellow bell pepper, cut into 1/4-inch dice
1/2                cup frozen peas, thawed
1/3                cup sliced black olives
1/4                cup finely chopped flat-leaf parsley
1                   tablespoon finely chopped tarragon
1                   tablespoon chopped thyme
3                   tablespoons all-purpose flour
4                   cups leftover turkey, cut into 1-inch pieces
2-1/4             cups turkey or chicken stock or low-sodium chicken broth
3/4                cup milk
           Salt and freshly ground white pepper
       **Steamed white rice, for serving**
1 .       In a large, deep skillet, melt the butter over moderately high heat. Add the onion, celery, carrots, bell peppers and peas and cook, stirring occasionally, until the onion is translucent, about 2 minutes. Stir in the olives, parsley, tarragon, thyme and flour and cook, stirring constantly, until the flour is fully incorporated and slightly browned, about 2 minutes.
2 .       Add the turkey to the skillet and cook for 1 minute. Gradually add the stock, stirring well and scraping up any browned bits from the bottom of the pan. Simmer over low heat until slightly thickened, about 3 minutes. Pour in the milk and return to a simmer. Cook until thickened, about 5 minutes. Season the stew with salt and white pepper and serve with rice.
    **Make Ahead**
The stew can be refrigerated overnight. Reheat gently before serving.