For the Canarian potatoes, wash the potatoes thoroughly. Bring to the boil with approx. 1 l water and 1 tbsp salt, cover and cook for approx. 20 minutes.
For the sauce in the meantime clean, wash and chop the peppers. Peel and finely dice the onion and garlic. Remove sausage from skin and cut into slices. Heat 1 tablespoon of oil in a small pot. Fry the sausage, onion and garlic. Deglaze with cream and milk and simmer for about 5 minutes. Puree everything finely with a hand blender. Season the sauce with salt and pepper.
For the fish, wash the fillets, dab dry and season with salt and pepper. Heat 2 tablespoons of oil in a large coated pan. Fry the fish for 2-3 minutes on each side. Drain the potatoes and if necessary toss them in the frying fat. Arrange everything. Tomato tastes good with it