Chicken Prawn And Tomato Paella

Name: Chicken, Prawn And Tomato Paella
Ingredients: 1 ½ tablespoon olive oil; 1 x 200g chicken breast fillet, trimmed and chopped; 200 g green (raw) prawns (shrimp), tails intact; 1 small brown onion, chopped; 2 cloves garlic, crushed; ½ teaspoon chilli flakes; ½ teaspoon smoked paprika; ¾ cup (150g) medium-grain rice; 1 x 400g can diced tomatoes; 1 ¼ cup (310ml) chicken stock; flat-leaf parsley leaves and lemon wedges, to serve