Curried sausages with cauliflower mash

Ingredients

• 400 gram kumara, cut into 2 cm pieces
• 350 gram cauliflower, cut into small florets
• 1 tablespoon vegetable or olive oil
• 8 lean beef sausages
• 1 medium brown onion, finely chopped
• 2 tablespoon bought korma curry paste
• 2 teaspoon plain flour
• 1/2 cup frozen peas
• 20 gram butter
• 1/3 cup milk