First things first, you’ll want to preheat your oven to 350°F (175°C). This ensures that when your casserole is assembled, you can pop it directly into a hot oven and let the magic begin.

While the oven warms up, bring a large pot of salted water to boil. Cook your pasta according to the package instructions until al dente, which usually takes about 8-10 minutes. Drain the pasta well and return it to the pot.

Now comes the fun part. In the pot with the drained pasta, add the shredded chicken, dried Italian herbs, and marinara sauce. Stir gently until everything is nicely combined. You want every noodle to be kissed by that rich sauce.

Grab that mozzarella cheese and fold it into the pasta mixture. As the cheese starts to incorporate, you can already envision the melty goodness that’s about to come out of your oven.

Transfer your mixture into a greased 9x13-inch baking dish. Spread it out evenly so each bite has all the flavors. If you're feeling wild, sprinkle a little extra mozzarella on top for an even cheesier finish. Bake uncovered for about 25-30 minutes, or until the cheese is bubbly and slightly golden.

Once out of the oven, allow the casserole to rest for about five minutes. This makes it easier to serve. Dish it up, and get ready for that first bite!