Cheesy Potato and Spinach Casserole: A Warm and Comforting Dish

Preheat your oven to 375°F (190°C). Grease a large casserole dish or coat it with olive oil for easy cleanup.

Sauté the Spinach:
Heat a little olive oil in a large skillet over medium heat. Add the diced onion and garlic, sautéing until soft and translucent (about 3-4 minutes). Add the fresh spinach and cook for 2-3 minutes until wilted. Remove from heat and set aside.

Prepare the Cheese Sauce:
In a separate saucepan, melt the butter over medium heat. Once melted, stir in the flour and cook for 1-2 minutes, creating a roux. Gradually add the milk, whisking continuously to prevent lumps. Cook for 5-7 minutes, allowing the sauce to thicken. Stir in the shredded cheddar cheese, grated Parmesan cheese, salt, pepper, and a pinch of nutmeg. Keep stirring until the cheese has melted and the sauce is smooth.

Assemble the Casserole:
In the greased casserole dish, layer the thinly sliced potatoes, followed by the sautéed spinach and onion mixture. Pour the cheese sauce evenly over the potatoes and spinach, making sure the sauce coats everything.

Bake the Casserole:
Cover the casserole with foil and bake for 45 minutes. After 45 minutes, remove the foil and bake for an additional 15 minutes, or until the potatoes are tender and the top is golden and bubbly.

Serve:
Let the casserole cool for a few minutes before serving. It pairs wonderfully with roasted meats or can be enjoyed as a hearty, stand-alone dish.

Serving and Storage Tips: