In a medium size mixing bowl, combine the hard boiled eggs, tuna, pecan pieces, celery, and red onion. Gently mix it all together to combine. Set the tuna and egg mixture aside.
In a small bowl, combine the Greek yogurt, mayonnaise, salt, onion powder, and black pepper. Using a fork or small whisk, carefully mix it together until it is one consistency.
Add the mayo/yogurt mixture to the tuna and egg mixture, and mix until everything is combined.
Serve with crackers and veggies for dipping, or with toast for the perfect Tuna Salad with Egg Sandwich!
The nutrition facts presented here are estimates only. The brands you use and product types chosen can change the nutritional information presented. To obtain the most accurate nutritional information, you should calculate the nutritional information with the actual ingredients you use.