Preheat the oven to 180 C / Gas mark 4. Line a baking dish with parchment or foil.
Take the chicken breasts and smother them in the pesto on all sides. Use 4 to 8 spoonfuls of pesto, depending on your taste. Also season the chicken with salt and pepper if desired.
Place the chicken breasts in the baking dish and bake in the preheated oven for 30 minutes. At 30 minutes, quickly take the chicken breasts out of the oven and sprinkle with mozzarella, then with chopped tomato. Place the chicken back in the oven and cook a further 20 to 25 minutes, until the chicken is done and no longer pink, and the cheese is melted.
Quick and easy recipe. I used home made wild "garlic and cashew" pesto and served with oven baked maris piper potatoes, mild garlic mushrooms and side salad. mmmmmmmmmmmmmmmmmmm. Can't wait for next time. - 07 May 2012