Image credits: Everyday Food via Youtube
If you’re looking for a casserole recipe that you can prep the night before, this cheesy spinach-potato egg casserole from Everyday Food on Youtube is perfect for you. This recipe is truly fantastic – gluten-free and vegetarian; what more can you ask for? It also has an amazing depth of flavor. Learn the recipe today by watching the video below.
Preheat the oven to 375 degrees F. In a pan, melt 2 tbsp of unsalted butter, then add the chopped onions. Season with 1/2 tsp of kosher salt. Cook it until the onions are browned a little. Next, crack 12 eggs in a large bowl and beat them. Add 1/4 tsp of nutmeg into the beaten eggs, 1 & 1/4 tsp of salt, and a little pepper. After this, back to the onions, you can now add the roughly chopped spinach to the pan. Once the spinach wilted down, add 2 tsp fresh thyme and stir it. Add the diced potatoes and 1 & 1/2 cups of milk. Stir it lightly and season with a little pepper.
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Bring it to a boil and then simmer it until it reduces and thickens slightly. (The potatoes should be tender but not mushy and the liquid should be slightly reduced and thickened.) After this, turn off the heat and let it cool to room temperature. In the meantime, grease the casserole dish and grate the cheese. Once the potato mixture cooled down, you can combine it with your egg mixture, then add 3 oz of grated fontina cheese. Transfer it to the casserole dish, cover with foil and place it in the preheated oven of 375 degrees F and bake for 30 minutes, then uncover it, sprinkle the remaining grated cheese, and continue to bake it for 15 to 25 minutes more.