Melt the coconut oil in a frying pan over a medium to high heat. Add the chicken and stir-fry for about 6 minutes, or until you are happy the chicken is fully cooked. Check by slicing into one of the larger pieces to make sure the meat is white all the way through, with no raw pink bits left.
While the chicken is cooking, arrange your tomato slices, mozzarella slices and basil in an overlapping circle. Season with a little salt and pepper, and drizzle with the olive oil.
When you’re ready to eat, top with the chicken, drizzle with the balsamic vinegar, scatter over the pine nuts, if using, and enjoy.