Preheat the oven to 375°F (190°C).
Cook the penne pasta according to package directions until al dente.
In a large skillet, heat olive oil over medium heat and sauté the minced garlic until fragrant.
Add the cubed chicken to the skillet, season with salt, pepper, and Italian herbs, and cook until browned and cooked through.
Pour in the heavy cream, stirring to combine, then add the cooked pasta and mix thoroughly.
Stir in the grated parmesan cheese until melted and fully combined.
Transfer the mixture to a greased baking dish and sprinkle the breadcrumbs on top.
Bake in the preheated oven for 25–30 minutes, or until the top is golden brown.
Let it cool slightly before serving.