Place pumpkin in a microwave-safe bowl and microwave on high for 12 minutes or until tender. (Alternatively, steam for 20-25 minutes.) Drain.
Place potatoes in a pan and cover with cold, salted water. Bring to the boil and cook for 20 minutes or until tender. Drain.
Place milk and butter in a pan over medium heat. Bring to a simmer. Combine potato and pumpkin and mash, gradually adding milk mixture until smooth. Season.
Meanwhile, heat a non-stick frypan over medium heat. Add sausages and cook, turning, for 10-12 minutes until cooked through.
Add spinach to the pan and cook for 2 minutes or until wilted.
Combine capers, parsley, lemon juice and olive oil in a bowl and season.
Arrange sausages on mash with the spinach and caper mixture. Top with paprika and micro parsley to serve.