To prepare in an electric pressure cooker: In a large bowl, combine 1/2 teaspoon salt, cardamom and allspice. Add beef; turn to coat. Select saute or browning setting on a 6-qt. electric pressure cooker. Adjust for medium heat; add oil. When oil is hot, brown beef in batches. Add onions; cook and stir until tender, 4-5 minutes. Add ginger, garlic, curry powder, cumin and remaining 1 teaspoon salt; cook 1 minute longer. Add 3/4 cup water to pressure cooker. Cook 1 minute, stirring to loosen browned bits from pan. Press cancel. Return beef to pressure cooker. Lock lid; close pressure-release valve. Adjust to pressure-cook on high for 20 minutes. Let pressure release naturally for 10 minutes; quick-release any remaining pressure. Select saute setting and adjust for low heat. Add spinach; simmer, uncovered, until heated through and sauce is slightly thickened, 8-10 minutes, stirring occasionally. Press cancel. Just before serving, stir in yogurt. Serve with rice.