Afghani Squash Casserole Recipe - Vegetarian Dish from Afghanistan

Ingredients

• 2 lb (907 g) winter squash , peeled and cut into 2.5-inch cubes
• 4 cups spaghetti sauce
• 2 tsp ground cinnamon
• 0.25 tsp ground cloves
• 1 tsp freshly ground black pepper
• 1.5 cups plain yogurt
• 1 tbsp minced fresh mint , or 1 tsp dried, plus extra for garnish
• 0.25 cup minced scallions
• 1 tsp salt