Weeknight dinners get expensive when every pack is full price, but ready meals go on offer more than almost any other aisle. We compare Tesco Finest, Sainsbury's Taste the Difference, Charlie Bigham's and budget ranges across Tesco, Sainsbury's, ASDA, Aldi, Morrisons, Co-op, Waitrose, Iceland, B&M, Boots, Superdrug, Savers and Ocado (including M&S). Curry, lasagne, pasta bakes, fish pies and pizzas, whatever mood calls tonight, the best-value version right now is below.