Sukiyaki Beef

Ingredients:

1 tablespoon peanut oil
1 pound beef round steak, sliced diagonally into 3 inch pieces
1/2 cup beef stock
2 teaspoons soy sauce
1 tablespoon butter
3/4 cup onion, diced
3/4 cup celery, diced
1/4 pound mushrooms, chopped
1/4 pound fresh spinach, rinsed



Instructions:

Heat oil in a wok or large heavy skillet over medium-high heat. Add beef, and cook until evenly brown. Stir in beef stock, soy sauce and butter. Push meat to the side, and toss in onion, celery and mushrooms. Cook, stirring, for about 4 minutes. Add spinach, and cook for 2 more minutes.