I was on a business trip in California and was taken out to a ritzy Pizzeria. One of the pizzas served was arugala, goat cheese, and grapes.
I would advise to not order that combo.
Fried eggplant is good on a pizza.
Fast forward a couple of weeks and they are now offering a gyro pizza with gyro meat, red onions, tomatoes, green olives and feta cheese and it was delicious.