Mustard Beef with Vegetables

INGREDIENTS
1    pound beef sirloin, cut to 1 inch cubes
2    tablespoons coarse ground mustard or other mustard
1    tablespoon onion powder
1    tablespoon garlic powder
1    cup medium chopped fennel
1    cup thinly sliced celery (2 to 3 stalks)
1    cup peeled and diced 1/2 inch sweet potato

1 1/4 cup fresh tomato sauce or 1/2 cup canned sauce and 1/2 cup water

If fennel is not to your liking, thinly slice two leeks, white and light green parts (1 cup)

METHOD
Preheat the oven to 350 F degrees. Mix the beef, mustard, onion powder and garlic powder in a bowl and set aside. In a 2 inch deep, 9 by 9 inch baking dish, mix the fennel/leek, the celery and sweet potato. Add the mustard beef and spread it evenly over the vegetables. Press the meat down into the vegetables and pour the tomato sauce over the entire dish.

Cover the dish and bake on a middle rack for 30 minutes. Remove the cover and continue to bake for 15 more minutes. Take it out of the oven and allow it to cool for 5 to 7 minutes before serving. This recipe will produce four medium servings or two large servings.