Heat the avocado oil in a medium non-stick skillet over medium-high heat.
Add the ground turkey sausage, diced red bell pepper, and yellow onion to the pan.
Cook for 5-7 minutes, breaking up the sausage with a spatula, until the meat is browned and the vegetables are tender.
In a small bowl, whisk together the whole egg, egg whites, sea salt, and black pepper.
Lower the heat to medium and pour the egg mixture into the skillet with the sausage and peppers.
Gently scramble the eggs for 2-3 minutes until they are just set and fluffy.
Warm the whole wheat tortilla in a separate dry pan or microwave for 10 seconds until pliable.
Place the egg and sausage mixture in the center of the tortilla and sprinkle with shredded cheddar cheese.
Fold in the sides of the tortilla and roll it up tightly into a burrito.
Serve immediately with fresh salsa on the side or drizzled over the top.