Slow Cooker Beef Stroganoff | Food Stuff

Ingredients

• 1 pound sliced baby portobello mushrooms
• 1 envelope (1-1/2 ounces) beef Stroganoff seasoning for the slow cooker
• 1/4 cup port wine or beef broth
• 2 pounds beef top sirloin steak, cut into thin strips
• 3 tablespoons butter
• Hot cooked egg noodles
• Minced fresh parsley, optional
• 2 teaspoons ground mustard
• 3 tablespoons olive oil
• 1 small onion, chopped
• 1-1/2 cups (12 ounces) sour cream
• 1 teaspoon sugar
• 1 cup water