Curried Butternut Squash

Ingredients:

1 small butternut squash, peeled, seeds discarded, diced into 1/2-inch pieces
1 small onion, thinly sliced
3 tablespoons vegetable oil
1/2 teaspoon ground cumin
1/2 teaspoon ground ginger
2 teaspoons curry powder
1 bay leaf
1 cup chicken or vegetable stock
3 cups cooked rice
1/3 cup raisins
1/3 cup toasted pistachios nuts (or pine nuts)
1 orange, peeled and roughly chopped
1 tablespoon chopped scallions or chives