Winter pasta salad:10 minutes to cook pasta in boiling salted water. Mushrooms clean, clean and quarter. Noodles you can drain, deter cold and drain. 1 tbsp heat olive oil in a pan, mushrooms FRY 5 minutes turning. Add vinegar and 2 tablespoons olive oil. Noodles, stir and pour into a bowl, allow cooling off. Now lettuce clean and wash. Wash tomatoes, clean and cut into columns. Clean leeks, wash and cut into rings. Beef Tenderloin wash, Pat dry and cut into strips. Season with salt and coarse pepper. Oil in the Pan and around 3-5 minutes roast fillet of beef in it. Take out. Mix the yogurt and horseradish. Season with salt, pepper and sugar. Stir in tomatoes, spring onions and beef under the noodles. Stir in lettuce. Wreak in bowls and drizzle with horseradish yoghurt.