Turkey Croquettes with Mushroom-Rosemary Gravy

Place the garlic , onion, celery and red bell pepper in food processor and pulse to fine chop. Add turkey, potatoes , egg, salt, pepper, poultry seasoning, and parsley leaves then pulse to process and combine the mixture. Remove bowl from base and blade from the bowl. In a medium mixing bowl combine the turkey mixture with 3/4 cup bread crumbs. Heat a small skillet over medium heat with 2 tablespoons butter and 1 tablespoon oil. When butter melts add the mushrooms and cook until dark and tender, 5 to 6 minutes. Season the mushrooms with salt and pepper and add rosemary to the pan. Sprinkle the flour over the mushrooms and cook a minute. Whisk in the stock, bring to a bubble and thicken, 5 minutes, over medium-low heat. Preheat a nonstick skillet with 3 tablespoons extra-virgin olive oil over medium heat. Use a conical or round ice cream scoop to form 8 croquettes. Combine cheese and remaining 1/4 cup of bread crumbs on a plate. Coat the croquettes in cheese and bread crumbs and saute in hot oil until deeply golden all over, 5 to 6 minutes for each batch. Remove and drain on paper towels. Serve the croquettes with rosemary gravy poured down over them.