Cook the spaetzle in salted water. Peel and dice the onion, fry in 1 tablespoon margarine in a pan. Clean or drain the chanterelles, add to the onions and stew. Season with salt, pepper and nutmeg. Grease the baking dish, pour in the spaetzle and mushrooms, mix. Pour the cream over it, sprinkle with the cheese, bake at 225 ° for about 15 minutes. Scatter chives rolls over the finished casserole.