Bring a large pot of salted water to a boil and cook the red lentil fusilli according to package directions until al dente.
While the pasta cooks, heat the extra virgin olive oil in a large skillet over medium heat.
Add the finely diced onion, carrot, and celery to the skillet and sauté for 5-7 minutes until the vegetables are softened and fragrant.
Increase the heat to medium-high, add the ground chicken, and cook until browned, breaking it up with a wooden spoon as it cooks.
Stir in the minced garlic, dried oregano, sea salt, and black pepper, cooking for another minute until the garlic is aromatic.
Pour in the tomato puree and reduce the heat to low, allowing the sauce to simmer for 10 minutes to develop the flavors.
Drain the pasta, reserving a splash of the cooking water, and toss the fusilli directly into the skillet with the chicken Bolognese.
Stir in the chopped fresh basil and a small amount of pasta water if needed to reach your desired consistency before serving.