M&S Mexican Taco Kit This kit contains 12 corn tacos, 1 sachet of spice mix and 1 sachet of mild salsa. Simply load with 500g lean minced beef. Ready in 10 minutes. Serves 4. Why not try… adding a bit more zing with a drizzle of sour cream and a dollop of fresh guacamole topped off with a sprinkling of cheese and lettuce. Or for a veggie option, fill with a fresh salsa of cooked kidney or black beans, chopped red onion, tomato, peppers, avocado coriander and lime juice.