Beef Stroganoff

I got this recipe from the dialysis center because my mom had to eat certain foods. our family loved it and it's the only recipe i use now.

• Ready In: 1 hr 20 mins
• Serves: 6

Ingredients

• 2  cups  fresh  sliced mushrooms
• 3  tablespoons margarine
• 1 1⁄2 lbs  sirloin steaks
• 1  teaspoon dry mustard
• 2  tablespoons flour
• 3⁄4 cup  sliced onion
• 1  cup water
• 1⁄8 teaspoon pepper
• 1⁄4 cup water
• 1  cup sour cream
•  add salt

Directions

1. Saute mushrooms and onions in large skillet in margarine until soft; remove from skillet and set aside.
2. slice the meat into strips the size of a pencil, 3 to 4 inches long and brown in skillet.
3. reduce heat to simmer.
4. return vegetables to skillet and add 1 cup water, dry mustard and pepper.
5. cover and simmer 45 min.
6. or until meat is tender, adding more water if necessary.
7. combine flour with 1/4 cup water, stir until smooth.
8. stir into meat mixture and cook until sauce thickens, about 2 min.
9. reduce heat to low.
10. just before serving, stir in sour cream.
11. serve over hot buttered noodles.