M&S is giving away a free lunch every 12 seconds for the next two weeks. You just need to look for special vouchers hidden inside 100,000 sandwich packs for your chance to win. Lucky finders will receive a free main and a drink worth up to £5.50.
You can choose from sarnie favourites BLT or Prawn Mayo or tuck into a delicious California Sushi Roll. Plus there are plenty of gluten free, vegetarian and vegan options to enjoy.
The competition lasts from September 18 until October 1 and winners can claim their free meal until October 14, 2017.
The M&S lunch deal is £3.50 for a sandwich, crisps and a drink.