In a large bowl, combine cornstarch, salt, black pepper, garlic powder, and paprika. Toss the chicken pieces in the mixture until well coated.
Heat vegetable oil in a large skillet over medium-high heat. Add the coated chicken pieces in a single layer and cook for about 5-7 minutes, turning occasionally, until golden brown and cooked through. Remove from heat.
In a separate bowl, mix together mayonnaise, sweet chili sauce, and sriracha until smooth. Adjust the sriracha to your desired spice level.
In serving bowls, layer the cooked jasmine rice, followed by the cooked chicken, shredded cabbage, shredded carrots, and green onions.
Drizzle the bang bang sauce over the top and sprinkle with sesame seeds. Serve immediately.