- 10 Minutes
- 35 Minutes
- Preheat the oven to 400°F. Place the spinach in a clean kitchen towel and squeeze out any excess moisture. Set aside.
- Melt the butter in a large skillet over medium heat. Add the onion and sauté until softened, about 8 to 10 minutes. Add the flour and cook for 1 minute. While whisking constantly, add the milk. Whisk until smooth. Season with the kosher salt and black pepper.
- Stir in the cream cheese, Parmesan cheese and reserved spinach.
- Transfer to a baking dish and top with the crispy fried onions. Bake for 20 minutes, or until hot and bubbly.