Spinach, Mushroom and Fontina Frittata
Fontina is a mild-tasting cheese that pairs nicely with mushrooms. Feel free to substitute Parmesan or, for a bigger flavor punch, feta cheese. Although I opted for a vegetarian version this time, I often sauté two ounces of diced pancetta or prosciutto until lightly crisp for its smoky flavor boost.


  • 8 eggs, lightly beaten
  • 2 tablespoons milk
  • 3/4 teaspoon kosher salt and freshly ground pepper to taste
  • 1-2 tablespoons olive oil
  • 1 small onion, diced (about 3/4 cup, red or yellow)
  • 8 ounces baby bellas or mushrooms of choice, chopped
  • 3 ounces spinach, roughly chopped (a little over half of a typical 5-ounce bag–a little more works, too, as it cooks down substantially)
  • 3/4 cup shredded Fontina cheese, divided


  1. Preheat oven to 425 degrees.
  2. Mix eggs with milk, salt and pepper in a medium bowl.
  3. Heat one tablespoon olive oil over medium-high heat in a 10-inch cast iron skillet or other oven-safe skillet.
  4. Sauté the onion until is begins to soften, 2-3 minutes. Add the mushrooms and sauté, stirring frequently, until golden brown and caramelized, about 8 minutes more. Cooking the mushrooms really well brings out their best flavor.
  5. Add the spinach and cook until completely wilted, another 1-2 minutes. Add another tablespoon of olive oil if the skillet become dry at any point.
  6. Reduce the heat to medium-low and pour in the egg mixture. Cook, stirring gently, until the eggs begin to set but do not begin to scramble.
  7. At this point, gently stir in 1/2 cup of Fontina and cook for 2-3 minutes more, without stirring, until eggs begin to set around the edges.
  8. Transfer the pan to the oven and bake until the eggs are just set in the middle, 4-5 minutes.
  9. Remove from oven and switch to broil setting.
  10. Sprinkle the remaining 1/4 cup cheese over the top and broil for 1-2 minutes, watching very closely, or until top is golden brown.

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