Beef Stroganoff Gluten Free Dairy Free

It's cold. It's winter. It's time for beef stroganoff.
Ingredients:

• 8oz mushrooms, sliced and cleaned
• 1 medium onion, sliced
• 1.25 lb steak, sliced thin
• salt and pepper
• 4 Tablespoons earth balance butter 
• 1 teaspoon dijon mustard
• 2/3 Cup Toffuti Sour Cream (dairy free)
• Method:  Saute onions until tender. Add mushrooms and cook for 4 minutes over medium heat. Add mustard, stir. Add steak. Sprinkle with salt and pepper. Stir until brown on both sides. Reduce heat to low and add sour cream. Cook 5 minutes and serve with gluten free noodles. I used Spectrum noodles for this dish, and they were delightful. They are made with a mix of potato and soy in addition to the standard rice. The texture is fantastic. Serve with veggies of choice.