1 lb of lamb cut into 1-inch cubes
1 large onion, finely chopped
4 tsp ground coriander
1 Tbsp mustard seeds
2 tsp ground cumin
1 tsp chili powder (or less if you want)
1 tsp turmeric
1/4 cup plain yogurt
1-inch finely chopped fresh ginger
3 garlic cloves, crushed
2 lb of fresh spinach, trimmed, washed and torn in small pieces
1/4 tp salt
1/2 Tbsp vegetable oil

Direction:

Heat the oil in a casserole and cook the onion over medium-high heat,
stirring constantly, until soft. Stir lamb, coriander, mustard seeds,
cumin, chili powder and turmeric. Mix all the ingredients well.
Add 1 Tbsp of yogurt and cook over high heat, stirring the meat
until all the yogurt is absorbed - 3 to 5 minutes. Repeat with a
second Tbsp of yogurt, third, etc...

When the yogurt is used up, stir in the ginger and garlic, add just
enough water to cover the meat and bring to boil. Cover the casserole,
lower the heat and simmer for one hour.

When the meat is cooked, increase the heat to medium and add the
spinach in batches, stirring each batch until it is wilted. When all
the spinach is incorporated, cook the stew, uncovered, over high heat to 
evaporate any excess liquid - about five minutes. Add the salt just
before serving.

*** For Details about Ingredients , check your nearest Indian Store