Greek-Spiced Baked Shrimp

Ingredients

• * 1 medium onion, chopped
• * 2 garlic cloves, finely chopped
• * 3 tablespoon extra-virgin olive oil
• * 1/2 teaspoon hot red-pepper flakes
• * 1/2 teaspoon ground cinnamon
• * 1/4 teaspoon ground allspice
• * 1 (28-ounce) can whole tomatoes in juice, drained, reserving juice, and chopped
• * Pinch of sugar
• * 1 1/4 pound large peeled and deveined shrimp
• * 1/4 pound feta, crumbled (2/3 cup)
• * 2 tablespoons chopped dill