I agree about the salmon, and keta is lower in those omega-3 oils as well. I didn't have enough sockeye. But actually keta is fine in the arrabbiata, I promise you, and it's much cheaper this end. When I have sockeye I want it nicely seasoned and fried in butter, skin side down to start with, with home-made oven chips (parboiled unpeeled wedges, roughed up, coated in groundnut oil and roasted for 20 minutes in a fierce oven), tenderstem broccoli and some oven-roasted cherry tomatoes with basil.