Preheat your oven to 200°C (400°F).
In a large mixing bowl, combine the chicken thighs, chorizo, baby potatoes, sliced bell peppers, onion, and crushed garlic.
Drizzle the olive oil over the mixture and sprinkle with smoked paprika, dried oregano, salt, and black pepper. Toss everything together until well-coated.
Transfer the mixture to a large baking tray, spreading it out evenly.
Place the tray in the oven and bake for 40-45 minutes, or until the chicken is cooked through and the potatoes are tender, turning halfway through cooking.
Once done, remove the tray from the oven and let it rest for a few minutes.
Garnish with fresh parsley before serving.