Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Peel the sweet potatoes and dice them into uniform half-inch cubes.
Toss the sweet potato cubes with one tablespoon of olive oil and a pinch of sea salt on the prepared baking sheet.
Roast the sweet potatoes for 25 minutes, tossing halfway through, until they are tender and the edges are caramelized.
While the potatoes roast, slice the turkey sausage links into small rounds.
Heat the remaining half tablespoon of olive oil in a large non-stick skillet over medium heat.
Add the sausage rounds to the skillet and sauté for 3-4 minutes until they are browned and slightly crisp.
Add the fresh spinach to the skillet and stir until it is just wilted.
Lower the heat slightly and pour in the egg whites, stirring gently with a spatula until they are fully set and fluffy.
Divide the roasted sweet potatoes into serving bowls and top with the egg white and sausage scramble.
Slice the avocado and place it on top of each bowl for a rich, buttery finish.