Preheat your oven to 220°C/420°F/Gas 7. Slice off some goat cheese and finely chop the spinach and sun-dried tomatoes.
Trim off any fat or gristly bits from the chicken breasts and then cut a deep pocket in each one. Add the cheese, spinach, garlic, basil and tomatoes to the pocket in the chicken and then close it up.
(optional) Make the crust by mixing 4 tablespoon panko (or normal) breadcrumbs, 2 tablespoon chopped parsley and the zest of a lemon. Sprinkle on top of the chicken breasts.
Put the chicken breasts in the oven for 25-30 minutes until cooked through.
Video
Notes
Be careful not to cut all the way through the chicken. You want to just make a pocket to stuff it.
If a lot of the mixture leaks out of the chicken when it is cooked, just leave it to cool a little bit and then stuff it back in.
You can make these up and then freeze them before cooking. Make sure to defrost thoroughly before cooking.
Leftovers are good sliced up and served on a salad.
Make them a little more indulgent by wrapping them in bacon before cooking.
You could wrap these in bacon or Parma ham and it would keep everything more secure, but obviously it the changes the nutritional information.