Ingredients
Method
Step-by-Step
- Heat the oven to 400°F (200°C) and grease a 10-inch ovenproof skillet, preferably cast iron or nonstick.
- Whisk the eggs, milk or cream, kosher salt, and black pepper in a bowl until blended. Stir in the finely grated Parmesan.
- Heat the olive oil in the prepared skillet over medium heat. Add the onion and cook for 3 to 4 minutes, until softened, then add the garlic and cook for about 30 seconds.
- Add the pepperoni and cook for about 1 minute, just until it releases its savory flavor and begins to warm through.
- Pour the egg mixture into the skillet and cook without stirring for 2 to 3 minutes, until the edges begin to set.
- Spoon or spread the marinara over the eggs, then sprinkle the mozzarella evenly across the top.
- Transfer the skillet to the oven and bake for 12 to 15 minutes, until the center is just set and the cheese is melted and lightly browned.
- Let the frittata rest for 5 minutes before garnishing with chopped basil or parsley. Slice into wedges and serve warm.
Notes
Use low-moisture mozzarella instead of fresh mozzarella so the cheese melts without adding excess water. Remove the frittata when the center still has a slight jiggle because residual heat will finish setting the eggs. Refrigerate leftovers and reheat gently.
