Preheat the oven to 400 degrees F.
In a medium bowl whisk the the eggs and half & half together.
Stir in the Ro-tel, 1 cup cheese, olives, onions, ½ teaspoon salt and ¼ teaspoon black pepper. Pour into the crust.
Add the chicken pieces by hand so it's evenly spread out across the quiche. Sprinkle with the remaining ¼ cup cheese.
Bake until firm in the center 40 - 45 minutes.
Let set 5 - 10 minutes then cut into wedges and serve with a green salad.