In a large baking dish, combine the uncooked pasta, diced tomatoes, broth, garlic powder, Italian seasoning, salt, and pepper.
Stir everything together until well mixed.
Cover the dish with aluminum foil and bake for 20 minutes.
Remove the foil, sprinkle the mozzarella and Parmesan cheese on top, and bake uncovered for another 10-15 minutes, until the cheese is bubbly and golden.
Serve
Serve it straight from the dish, letting everyone scoop out their gooey portion!