Stir together crème fraîche, mustards, garlic, lemon juice, cayenne, paprika, green onion, and smoked salmon in a medium bowl. Season with salt and pepper.
Scoop out egg yolks and put in a bowl. Mash yolks with a fork and stir in crème fraîche mixture.
Spoon yolk mixture into egg white halves and sprinkle with chives.
Note: Nutritional analysis is per serving.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.