Set your oven to 100˚C/212˚F (steam only). Mix the rice with 1 ½ cups (375ml) water and put in the oven for 25 minutes.
While the rice starts cooking, mix the quinoa with 1 cup (250ml) water. Add it to the oven once the rice has been in for 10 minutes (ie 25 minutes total cooking for the rice, 15 minutes total for the quinoa). When the grains are done, remove from oven and fluff with a fork, then leave to cool.
Change your oven setting to 200˚C/400˚F, combination steam setting (if your oven has variable steam levels, choose 80%). Put the cubed pumpkin in and cook for about 20 minutes until tender and browned on the edges. Remove from oven and cool slightly.
While the pumpkin is cooking, mix the oil, citrus juices and zest, garlic, salt and pepper to make a dressing. Taste and adjust seasoning – if your fruits aren’t particularly juicy you may need a little more lime or orange. The dressing should be a bit sharp and a bit oversalted as it’ll get soaked up by the grains pretty quickly.
Once the rice and quinoa have cooled (you want them lukewarm), mix them in a large bowl with the dressing, apricots, pistachios, spring onions, feta, mint and half the chilli (if using). Gently toss the warm pumpkin through and, if you can, leave the salad to sit at room temperature for 30 minutes before serving so the dressing absorbs into the grains. Serve with more chilli and lime wedges.