Clean and wash the spring onions and cut them into large pieces. Peel, wash and chop the potatoes. Heat 1 tablespoon of oil in a large pot. Brown onions and potatoes in it. Add frozen peas and 1.2 l water, bring to the boil.
Stir in broth. Cover and simmer for about 15 minutes.
Fry the bacon in a pan without fat until crispy and remove. Roast toast in hot bacon fat while turning golden brown. Place 3 bacon slices between 2 toast slices and cut the toast diagonally in half.
Wash the mint and pluck the leaves. Add to the soup, puree with a hand blender. Season to taste with salt and pepper. Roughly chop the wasabi nuts. Serve soup with toast and nuts.