Tender cooked chicken, mushrooms, peas, and pimentos in a rich, creamy sauce, all made in one skillet. It comes together in 30 minutes and is the best way to turn leftover or rotisserie chicken into a real dinner.
Melt the butter in a large skillet over medium-high heat. Add the mushrooms and cook 5 to 7 minutes, until browned at the edges.
Add the onion and cook 3 to 4 minutes until softened. Stir in the garlic and cook 30 seconds more.
Sprinkle the flour over the vegetables and stir to coat. Cook 2 full minutes, stirring often. The mixture will look thick and pasty.
Whisk in the wine, then the chicken stock, chicken base, thyme, salt, and pepper. Bring to a boil and cook 3 minutes, whisking as it thickens.
Reduce the heat and stir in the heavy cream. The sauce should coat the back of a spoon.
Add the peas, pimentos, and chicken. Simmer gently 3 to 4 minutes, just until heated through. Taste and adjust seasoning.
Serve over egg noodles, rice, mashed potatoes, or split biscuits.
Notes
Cooked chicken: you need about 3 cups. Rotisserie chicken is the easiest shortcut, and leftover roasted or poached chicken works just as well.
Cook the flour: the full 2 minutes matters. It is what keeps the sauce from tasting pasty.
No wine: substitute an equal amount of chicken stock, or use dry sherry for the traditional flavor.
Frozen peas: no need to thaw them first. They will heat through in the sauce.
Pimento swap: jarred roasted red peppers or a diced fresh red bell pepper cooked with the onion.
Sodium: use reduced-sodium stock, since the chicken base adds salt of its own. Season at the end, not the beginning.
Storage: refrigerate up to 5 days in an airtight container. Reheat gently with a splash of stock or cream. Freezing is not recommended, since cream sauces separate.
Turkey works too: swap in cooked turkey using the same measurement.