parsley, Garnish
8 oz. egg noodles, wide
1 tbsp. mustard
1/3 cup soy milk
2/3 cup soy yogurt
1/2 cup beef broth
2 tbsp. flour
2 cups mushrooms, chopped button
5 tbsp. olive oil, divided
1 tsp. salt
1 tbsp. black pepper, coarsely ground
20 oz. beef tenderloin steaks