Ingredients Meat & Poultry Chicken Chicken Breast Recipes Warm Chicken, Mushroom, and Spinach Salad 2.9 (10) By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on August 4, 2020 Print Share Share Tweet Pin Email Photo: Petrina Tinslay Servings: 4 Chicken breasts smothered with onions and mushrooms are served over fresh spinach in this delectable salad. Ingredients 1 tablespoon olive oil 1 cup loosely packed flat-leaf parsley leaves, coarsely chopped 2 whole boneless chicken breasts, skin on, split Salt and freshly ground black pepper 1 small onion, chopped fine 10 white mushrooms, trimmed and cut into ¾-inch pieces 1 cup dry white wine 2 tablespoons balsamic vinegar 1 tablespoon butter 4 handfuls fresh baby or flat-leaf spinach, (8 to 10 ounces), stems cut Directions Preheat oven to 400 degrees. Heat olive oil in a large skillet over medium heat. Press a scant tablespoon parsley onto skin side of each breast. Season both sides with salt and pepper. Place breasts, skin side down, in skillet; cook until golden, about 8 minutes per side. Remove chicken from skillet, and transfer to a roasting pan. Place roasting pan in oven. Roast until chicken cooks through, 15 to 20 minutes. Meanwhile, return skillet to stove. Add onion; cook, stirring, until just golden, about 2 minutes. Add mushrooms; cook until soft, about 5 minutes. Add wine; scrape skillet's bottom to release cooked-on juices. Cook until wine is almost evaporated, about 5 minutes. Add vinegar; cook 1 minute more. Stir in remaining parsley; season with salt and pepper. Remove from heat; stir in butter. Remove chicken from oven. Place spinach on plates. Slice each breast into sixths; arrange over spinach. Spoon mushroom mixture over chicken, drizzling juices over spinach, and serve. Print