By Danielle Kate Wroe Meal deals are basically an essential part of monthly food shop days – and when it comes to Valentine’s Day, supermarkets really up the ante. Promising big flavours for a smaller price tag, Marks and Spencer are offering diners the chance to enjoy a three-course meal, with a side and your choice of drink for just £25, which is a lot cheaper than a dinner reservation at a fancy restaurant. Yes, it’s pricier than it’s been in the past, but it’s still great value, and with the cost of living crisis still impacting our pockets, a cosy meal in could be the best option. Romance…