Roasted Delicata Squash Stuffed with Autumn Farro

Name: Roasted Delicata Squash Stuffed with Autumn Farro
Ingredients: 2 large delicata squash, halved; Salt and pepper, to taste; Olive oil, as needed; 1/4 teaspoon hot Hungarian paprika (optional); 1 teaspoon cumin; 2 sprigs rosemary, cut into four halves; 1 cup farro; 3 cups water or vegetable broth; 1 bulb fennel, shaved and chopped; 1 bunch small scallions, white and green parts chopped; 4 ounces winter greens or arugula; 1/2 cup pistachio, crushed; Seeds of 1 pomegranate; 1/4 cup tahini; Juice of 1 medium orange; Zest of 1/2 orange; 1 tablespoon Dijon mustard; 1/2 teaspoon fresh thyme