Cook the pasta according to package instructions until al dente.
In a large bowl, mix the cooked pasta, spinach, diced tomatoes, half of the mozzarella, garlic powder, Italian seasoning, salt, and pepper.
Transfer the mixture to a baking dish and sprinkle the rest of the cheese on top.
Drizzle with olive oil and bake for 20-25 minutes until bubbly and golden.
Serve
Let it cool for a few minutes, then dish it out straight from the pan. Perfect with a side salad!