Preheat the oven to 350°F. Place a frozen deep dish pie crust on a large baking sheet. Set aside.
In a medium-size mixing bowl, whisk together eggs and half & half until smooth. Add salsa, taco seasoning, garlic salt and lemon pepper. Mix well.
Stir in the chicken, ¾ cup tortilla chips, green onion and 1 cup cheese. Stir until evenly distributed. (Reserve ¼ cup tortilla chips for the top)
Sprinkle ½ cup shredded cheese onto the bottom of the pie shell. Pour the filling evenly into the shell.
Sprinkle top with reserved ¼ cup tortilla chips and ½ cup cheese.
Place into the oven and bake for 30 minutes. Check for browning and lay a piece of foil on top, if needed.
Continue to bake an additional 20-30 minutes or until the center is set when gently shaken.
Rest for at lest 30 minutes prior to cutting.
Serve with a dollop of sour cream, salsa and green onion, if desired.