I love a good breakfast dish. And after seeing the same strata pop up on two of my favorite blogs, I knew it would be made in my kitchen... eventually ;)
What I did discover, is that this can be frozen! I prepped the recipe below in two baking dishes (a 9" square and 3" square), baking the smaller one right away and freezing the larger one. Provided a portable breakfast when I needed it, and another portion to enjoy with loved ones!
Kale & Spinach Strata
adapted from Gourmet, as found on Smitten Kitchen and Eggs on Sunday
A perfect blend of my two favorite greens, this strata was hearty and comforting. A great way to start off the day, but perfect for any meal as it can be reheated!
1 10oz bag frozen spinach, thawed
1 head kale, washed
1 medium onion, diced
1t salt, divided
1/2t black pepper, divided
1/4t freshly grated nutmeg
8c cubed bread (I used Nature's Pride Honey Wheat)
4-5oz finely grated cave-aged gruyere (~1 1/4c)
2 3/4c milk
1c egg whites (or substitute)
2T whole grain Dijon mustard
De-stem kale leaves and roughly chop, set aside. Squeeze thawed spinach dry (using a dish towel or paper towels), and roughly chop.
Melt butter in a nonstick skillet over medium-low heat. Add onion and cook for 5-10min, until it begins to soften. Add kale, cover and cook for ~5min. Remove cover, stir and cook another 5min. Stir in spinach and cook a few more minutes. Season with 1/2t salt, 1/4t pepper and nutmeg. Remove from heat and set aside.
Spray a 9x13 pan with cooking spray. Spread 1/2 of the bread cubes in the bottom of the dish, followed by 1/2 spinach/kale mixture and 1/2 gruyere. Repeat.
Combine remaining ingredients in a large bowl (milk, eggs and whites, Dijon, 1/2t salt and 1/4t pepper). Whisk together and pour over strata. Cover with plastic wrap or foil and chill in the fridge overnight (at least 8hrs).
When ready to bake, let strata stand at room temperature a bit (~30min). Preheat the oven to 350deg. Bake the strata, uncovered, in the middle of the oven for 45-55min, until puffed, golden brown and cooked through. Let stand 5-10min before serving.
To freeze unbaked strata, cover with a layer of plastic wrap and then foil. Freeze after chilling 8hrs, just be careful to keep it on an even surface until it has frozen! When ready to prepare strata, bake unthawed (after removing plastic wrap and foil) at 350deg for 55-75min, until golden brown and cooked through. Let stand 5-10min before serving.