Preheat the oven to 400F.

Add the diced turnip to a large baking pan and drizzle with olive oil. Roast for 5 minutes. 

Meanwhile, prepare the zucchini and sausages. In a small bowl, mix together smoked paprika, dried thyme and onion powder.

Remove the turnip from the oven, and add the zucchini, sausage, and seasoning blend to the pan. Gently mix so that everything is well coated. Season with salt and pepper.

Roast for another 5 minutes, then add the shrimp. Stir to mix, then return to the oven for another 12-15 minutes or until the shrimp is cooked through.

Once everything is cooked, add some chopped fresh parsley and serve.