Use any combination of sturdy cooking greens as a substitute for the spinach and mustard: Amaranth, lamb’s quarters, collards, turnip greens, and kale are all good choices. Mutton and goat shoulder are excellent substitutes for the lamb.
Trim off excess fat from:
If using boneless shoulder, cut the meat into 1 ½-inch pieces. Toss the lamb in a bowl with:
Heat in a Dutch oven over medium-high heat:
Add the lamb in batches and brown on all sides. Transfer the browned lamb to a plate. Reduce the heat to medium, drain off any fat, and add:
When the seeds become fragrant and start to pop, add:
Cook until the chiles and bay leaves crisp and darken, about 30 seconds more. Add:
Cook, stirring, until the onions are soft and translucent, about 10 minutes. Add:
Bring to a simmer, reduce the heat, cover, and cook until the meat is tender, about 1 ½ hours.
Uncover and simmer for another 20 or 30 minutes to thicken the curry. Remove the bay leaves. If using shoulder or neck chops, transfer them to a baking sheet. When cool enough to handle, shred the meat, discarding any bones or gristly bits, and return the meat to the pot. Stir in:
Serve with:
Garnish each serving with: