Ingredients

• Ingredients
  1. 2 tablespoons extra-virgin olive oil, plus more for brushing
  2. 3/4 pound mixed mushrooms, such as button and cremini, sliced 1/4 inch thick
  3. Salt and freshly ground pepper
  4. 1/2 small onion, thinly sliced
  5. 1/4 cup dry sherry, such as Oloroso
  6. Four 1/2-inch-thick slices of rustic white bread
  7. 2 tablespoons unsalted butter
  8. 4 large eggs
  9. 2 tablespoons coarsely chopped flat-leaf parsley

Directions

1. Preheat the oven to 400°. In a large skillet, heat the 2 tablespoons of oil until shimmering. Add the mushrooms and season with salt and pepper. Cover and cook over moderate heat, stirring a few times, until softened, 4 minutes. Add the onion, cover and cook, stirring occasionally, until the onion is softened and the mushrooms are browned, 3 minutes longer. Add the sherry and cook until almost evaporated, 1 minute. Season with salt and pepper. Remove from the heat, cover and set aside.
2. Arrange the bread slices on a large rimmed baking sheet and brush with olive oil. Bake for about 6 minutes, until toasted. Transfer the toasts to plates.
3. In a large, nonstick skillet, melt the butter over moderate heat. Crack the eggs one at a time into a ramekin and then slip into the skillet. Cook the eggs, sunny-side up, until the whites are firm and the yolks runny, about 5 minutes.
4. Spoon the mushroom mixture onto the toasts and top with the fried eggs. Garnish with the parsley and serve.

Make Ahead

The cooked mushrooms can be refrigerated overnight. Reheat gently.