Scald peas with boiling water, drain. For the noodles, boil 4-5 l salted water (1 teaspoon salt per litre). Clean the mushrooms, possibly wash and halve them. Peel garlic, chop finely. Clean, wash and cut spring onions into rings. Cook pasta in boiling salted water according to package instructions.
Heat the oil in a large frying pan. Sauté the mushrooms in it. Fry the garlic briefly. Dust with flour and sauté. 1⁄4 l Stir in water, stock and cream. Bring to the boil and simmer for about 5 minutes.
Meanwhile, for the dip, puree peas, except for 2 tablespoons, cream cheese and lemon juice, stir in whole peas. Season to taste with salt and pepper.
Wash parsley, shake dry and chop. Drain the noodles and fold into the mushroom sauce with the spring onions. Serve with pea dip and sprinkle with parsley.