In a large bowl, combine cornstarch, salt, black pepper, garlic powder, and paprika. Toss chicken until well coated.
Heat vegetable oil in a large skillet over medium-high heat for 2-3 minutes until shimmering.
Add chicken in a single layer without overcrowding. Cook 5-7 minutes, turning occasionally, until golden and internal temperature reaches 165°F.
Remove chicken and rest on a wire rack for 1 minute.
In a small bowl, whisk together mayonnaise, sweet chili sauce, and sriracha until smooth. Adjust sriracha to taste.
Assemble bowls with jasmine rice as base, arrange crispy chicken to one side.
Add shredded lettuce, diced cucumber, shredded carrots, and green onions in separate sections.
Drizzle bang bang sauce in a zigzag pattern over the top.
Sprinkle with sesame seeds before serving. Serve immediately and enjoy.