Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Toss the cubed sweet potatoes with 1 tablespoon of olive oil and a pinch of sea salt, then spread them in a single layer on the prepared baking sheet.
Roast the sweet potatoes for 20-25 minutes, flipping halfway through, until they are tender on the inside and golden brown on the outside.
While the potatoes are roasting, cook the turkey bacon in a non-stick skillet over medium heat until it is browned and crispy.
Remove the bacon from the pan, chop it into small pieces, and set it aside.
In the same skillet, add the remaining half tablespoon of olive oil and sauté the fresh spinach until it is just wilted.
Lower the heat slightly and pour the egg whites into the skillet with the spinach, adding the chopped turkey bacon back in.
Stir the mixture gently and constantly until the egg whites are fully set and fluffy.
Serve the egg white scramble immediately alongside the hot roasted sweet potato cubes.