Cooking spray
4 halves chicken breasts — skinless and boneless
Salt and black pepper to taste

Green Spinach Horseradish Sauce
10 ounces spinach — chopped, frozen, thawed
1/2 cup mayonnaise
6 tablespoon white horseradish — prepared
2 tablespoon parsley — chopped
salt and pepper

Preheat the oven to 400F. Coat a baking sheet with cooking spray. Season
the chicken all over with salt and pepper. Place the chicken on the
prepared sheet and bake until golden brown and cooked through, about 25
minutes. Meanwhile, in a food processor, combine the spinach, mayonnaise,
horseradish and parsley and process until smooth. Seaso with salt and
pepper. Spoon the sauce over the baked chicken and serve.