Bring a large pot of salted water to a boil and cook the pappardelle according to package directions until al dente.
While the pasta cooks, heat the olive oil in a large skillet over medium heat.
Add the diced onion, carrot, and celery to the skillet and sauté until the vegetables are softened and fragrant.
Add the ground turkey to the skillet, breaking it up with a wooden spoon, and cook until browned and fully cooked through.
Stir in the minced garlic, sea salt, black pepper, and dried oregano, cooking for another minute until fragrant.
Pour in the tomato puree and reduce the heat to low, allowing the sauce to simmer and thicken for 5-7 minutes.
Drain the pasta, reserving a small amount of pasta water, and toss the noodles directly into the turkey bolognese sauce.
Garnish with freshly chopped parsley and serve immediately.