Heat the olive oil in a large frying pan over a medium heat, add the onion and fry for 5 minutes until beginning to soften. Add the mushrooms and cook for 10-15 minutes until softened and all the juices have evaporated.
Meanwhile cook the rice in a pan of boiling water for 10-15 minutes.
After 15 minutes take the mushroom and onions off the heat and stir through the fromage frais and parsley.
Serve onto of the cooked rice.
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