Its name is just a plain description in Sindhi — 'sai' means green and 'bhaji' means vegetable — for a dish that's really a whole pot of dal and greens fused into one.
Spinach and other leafy greens are simmered down with split lentils, tomato, onion and garlic until the mixture turns smooth and deep green, then tempered with cumin and served over rice or with roti. Sindhi food stalls keep a pot going through lunch and dinner.