Lamb: use a knife and cutting board to dice the lamb leg steaks into 1-2 bite size pieces.
Brown: place a large sauté pan on the stove top and turn the heat to high. Add the peanut oil, diced lamb, salt and black pepper. Brown the lamb, using a wooden spoon to stir it as it cooks for 5-6 minutes. Once browned, remove it and any excess liquid from the pan and place onto a paper towel lined bowl.
Satay sauce: without rinsing or cleaning the pan we browned the lamb in, add the peanut butter, coconut milk, sliced red chilli, lime juice, soy sauce and Worcestershire sauce. Stir regularly as the peanut butter melts, until the sauce has a consistent texture.
Combine: next add the browned lamb back to the pan and stir to gently fold it into the satay sauce. Reduce the heat to medium high and let it cook stirring regularly for 5-6 minutes to finish cooking the lamb.
To serve: serve the satay lamb with cooked basmati rice, fresh coriander and lime wedges. Sprinkle some crushed cashews over the top to garnish.