David Beckham spent a lovely Sunday with his mum Sandra Beckham and couldn't help but share a sweet picture taken during their time together with his 73 million Instagram followers.MORE: David and Victoria Beckham – a look inside their 20-year marriageThe rare snap inside Sandra's kitchen shows the former footballer and his mum enjoying a delicious homemade meal, with both of them sitting side by side and smiling for the camera.WATCH: David Beckham mocks daughter Harper during school run"Can't beat dinner with mum. Gammon, chips, pineapple, fried egg, coleslaw & mushy peas.