Preheat your oven to 375°F (190°C).

Thoroughly wash and drain the spinach.

Melt butter in the skillet and sauté garlic for about 1 minute until fragrant, then add spinach and sauté until wilted.

Pour in heavy cream, lemon zest, lemon juice, and nutmeg. Simmer for 2-3 minutes until slightly thickened.

Stir in grated Parmesan cheese until melted. Adjust seasoning if needed.

Create small wells in the spinach mixture and crack eggs into each well. Season eggs and sprinkle with additional Parmesan.

Transfer the skillet to the oven and bake for 12-15 minutes until egg whites are set and yolks remain runny.

Remove from oven and let it rest for a few minutes before serving.