Remove kale leaves from stalk, wash and cut into small pieces.
Peel the pumpkin, remove the seeds and cut into small pieces.
Peel and chop the onion and garlic.
Carrots as well.
Put everything in a large roasting pan for the oven.
Add water, mustard, salt and pepper.
Cook in the preheated oven at 200 degrees celsius top/bottom heat for about 45 minutes. Stir once and again during this process.
At the end of the cooking time, stir in the cooked edamame beans.
In the meantime, cook the potatoes. Then peel and cut into slices.
Put water for the sauce in a pot.
Briskly whisk in the flour.
Bring everything to a boil. Stir constantly until a thick mass is formed.
Add the yeast flakes and the spices and bring to the boil again.
In a baking dish, first cover the bottom with the sauce, then layer the sliced potatoes on top. Finally cover with sauce.
Place in oven and bake at convection oven for about 10 - 15 minutes.