Place the pasta and peas in the bottom pan and the veg in the upper tier. The place the salmon on top with the lid on and focus on cooking the pasta through. Everything else will steam cook perfectly.
Now take the salmon out and take the bottom skin off it has it and set aside.
Mix all the veg and past together and place the salmon on top.
Now for the sauce, mix the yoghurt, chilli, seasoning, lemon and vinegar and pour on top. Season again to taste and drizzle olive oil on top if using.