In a medium non-stick skillet, heat the olive oil over medium-high heat.
Add the ground turkey sausage to the skillet, breaking it up with a spatula, and cook until browned and cooked through, about 5-7 minutes.
While the sausage cooks, whisk together the whole egg and egg whites in a small bowl with sea salt and black pepper.
Add the baby spinach to the skillet with the sausage and sauté until wilted, about 1 minute.
Lower the heat to medium and pour the egg mixture into the skillet. Gently scramble with the sausage and spinach until the eggs are just set.
Warm the whole wheat tortilla in a separate dry pan or microwave for 15 seconds until pliable.
Spread the black beans in the center of the tortilla, then top with the egg and sausage scramble.
Drizzle the salsa over the filling, fold in the sides, and roll tightly into a burrito.
Optional: Place the rolled burrito back in the skillet for 30 seconds per side to crisp the exterior.