Finely chop the onion and garlic, then add to a hot pan along with the diced chicken breast. Spray with low calorie cooking spray, cook gently until the onions are soft, but not coloured
Turn the heat up and add the rice and stir well. After 2 minutes add add the mushrooms, diced Asparagus stems, 100ml/½ cup of the chicken stock, tin of tomatoes, Oregano, Chilli Flakes and white wine vinegar