Creamy Spinach and Egg Casserole
An American-style baked side casserole that sets eggs with sautéed spinach, onion, cream, and cheddar. It bakes into soft squares with a browned top and a moist, custardy interior.
By Julienne
Cook time: 30 minutes
Servings: 4
Ingredients
- 20 g unsalted butter divided
- 15 ml olive oil for sautéing
- 80 g yellow onion small dice
- 2 count garlic cloves minced
- 170 g fresh spinach washed and roughly chopped
- 6 count large eggs lightly beaten
- 120 ml heavy cream none
- 60 ml whole milk none
- 3 g fine salt divided
- 0.75 g black pepper freshly ground, divided
- 0.25 g ground nutmeg divided
- 80 g sharp cheddar cheese grated
- 20 g Parmesan cheese finely grated
- 8 g unsalted butter divided
- 1 g fine salt divided
- 0.25 g black pepper freshly ground, divided
- 0.25 g ground nutmeg divided
- 20 g sharp cheddar cheese grated
- 0.25 g cayenne pepper optional, for a light finish
Instructions
- Heat the oven to 190°C. Grease a 9x9-inch baking dish with 8 g of the butter. Set a 10-inch skillet over medium heat and add 15 ml olive oil plus 12 g butter. The butter is melted and the skillet is evenly coated.
- Add the onion and cook for 4 minutes, stirring often, until translucent. Add the garlic and cook for 30 seconds. Add the spinach and cook until wilted and any moisture has mostly evaporated, 2 to 3 minutes. The spinach is wilted and the pan looks mostly dry.
- In a mixing bowl, whisk the eggs with the cream, milk, 3 g salt, 0.75 g black pepper, and 0.25 g nutmeg. Stir in the sautéed vegetables, 80 g cheddar, and all of the Parmesan. The mixture looks evenly combined with the cheese distributed through it.
- Pour the mixture into the prepared baking dish and top with the remaining 20 g cheddar, the remaining 8 g butter cut into small pieces, the remaining 1 g salt, 0.25 g black pepper, 0.25 g nutmeg, and the cayenne if using. The surface is evenly topped and ready for the oven.
- Bake for 25 to 30 minutes, until the center is just set and the top is lightly browned. A knife inserted near the center should come out mostly clean, and the casserole should jiggle only slightly in the middle. The center is set and the top is browned with a few deeper cheese spots.
- Rest for 5 minutes before cutting into 4 portions and serving warm. The squares hold together when sliced.