In a large skillet, heat the olive oil over medium heat. Add the chicken pieces and season with garlic powder, onion powder, salt, and pepper. Cook for about 5-7 minutes, stirring occasionally, until the chicken is browned and cooked through.
Add the sliced zucchini and chopped red bell pepper to the skillet. Sauté for another 4-5 minutes until the vegetables are tender.
Stir in the cherry tomatoes and Italian seasoning. Cook for an additional 2-3 minutes until the tomatoes are warmed through.
If desired, sprinkle the grated Parmesan cheese over the top and let it melt for a minute.
Remove from heat and garnish with fresh basil before serving.