Tantalizing Smoky Chicken Pizzas

TANTALIZING SMOKY CHICKEN PIZZAS¼ c. olive oil1 large red onion, thinly sliced1 t. crushed red pepper, or more if you like spice4 individual-size baked pizza crusts or flatbreads2 c. shredded rotisserie chicken1 c. shredded smoked mozzarella cheese1 c. fresh arugula…