Place the olive oil, diced onion and red pepper in a reasonably large saucepan.
Cover with a lid and cook over a gentle heat for 3 minutes until softened but not browned.
Remove the lid and add the chilli flakes, turmeric and smoked paprika; cook for 2 more minutes.
Add a splash of water if it starts to get a little dry.
Add the rice, chicken stock, salt and pepper.
Turn the heat up and bring to a boil.
Cover with a lid and turn the heat down; cook for 7 minutes, or until the rice is nearly cooked (see note).
After 7 minutes, add the peas and stir; re-cover with the lid; cook for 3 more minutes or until the rice is done and the peas are hot.