Preheat oven to 180°C and line baking tray with parchment paper. Arrange peppers on the prepared tray and bake for 20 minutes.
Cook quinoa according to the package directions. Heat oil in a frying pan over medium heat. Add mushrooms and cook for 10 minutes. Add carrots and parsley and cook for 5 minutes.
Take the peppers out of the oven. Don’t turn the heat off. In a large bowl mix together cooked quinoa and mushroom mixture. Spoon quinoa mixture into each pepper and place in a baking dish. Cover with foil and bake for about 20 minutes. Enjoy!