Preheat broiler on low setting. Coat a baking tray with cooking spray or a light brush of vegetable oil.
Place salmon on baking tray and season evenly with salt and pepper.
Broil till cooked through, about 10 minutes, turning over after 5 minutes. Remove and set aside.
Meanwhile, cook pasta according to its directions. Three or four minutes before it's done, add the peas into the water. Drain and set aside.
Heat a saute pan over medium-high heat with the olive oil.
Add onions and garlic and sweat till aromatic and softened. Add white wine and deglaze pan, cooking till wine is reduced by half.
Lower heat to medium, add heavy cream and simmer till slightly thickened.
Toss pasta and peas into creamy mix, flake salmon over pasta, add chives, and toss to mix.
Divide onto plates. Grate parmesan over to serve.