This is really a construction job and a very clever cheat, as nearly everything is pre-cooked, from the rice to the chicken, peppers and seafood.
Bring 400ml/14fl oz water to the boil in a large pan with the saffron, then add the peas and simmer for 2-3 minutes until they are just cooked and the saffron is infused. Tip in the rice and gently stir round the pan until it turns yellow, then stir in the chicken, seafood, peppers and olives. Cover and cook for a minute or so stirring occasionally over a medium heat until everything has heated through completely, then toss in the parsley.
Arrange and serve. Pile on to a large warm platter and serve with lemon wedges round the sides.