Bring a large pot of salted water to a boil and cook pasta according to package directions until al dente.
Drain the pasta and set aside. Reserve ½ cup pasta water if needed.
In a medium bowl, combine diced tomatoes, basil, garlic, olive oil, balsamic vinegar, salt, and pepper. Let sit for 10 minutes.
Season chicken with Italian seasoning, garlic powder, salt, and pepper.
Heat olive oil in a large skillet over medium-high heat.
Cook chicken for 5–7 minutes per side until fully cooked and golden brown.
Remove chicken from the skillet and let rest for 5 minutes before slicing.
Place cooked pasta in a large serving bowl.
Add sliced chicken and spoon the bruschetta mixture over the pasta.
Toss gently to combine. Add a splash of reserved pasta water if needed.
Garnish with Parmesan cheese, fresh basil, and balsamic glaze before serving.