1.) Cook the spinach on a medium heat in a splash of oil for 3-5 minutes until it is slightly wilted.
2.) Stir in the ricotta and cook for a further 30-60 seconds. Allow to cool.
3.) Cut slits into the chicken breasts about 1/4 inch apart but don’t cut all the way through – about 75% of the way down is what you should aim for, but don’t stress over it.
4.) Stuff all of the spinach and ricotta mixture into the slits.
5.) Season the chicken with salt and pepper.
6.) Grate the cheddar and sprinkle it generously on top.
7.) Shake a good bit of ground paprika over the chicken to add some colour and flavour.
8.) Bake in the centre of a pre-heated oven for 20-25 minutes at 400°F until the cheese has melted and the juices are clear.