Remove egg yolks and place in a resealable plastic bag. Add avocado, smoked salmon, lime juice, minced jalapeño, cilantro, garlic, and cayenne. Mix and mash everything together in the bag. Once well blended, taste and adjust seasoning to taste.
You can keep everything in the fridge in bags at this point until ready to serve. Snip a small hole in the corner of the bag and pipe out filling into each egg white. Garnish with a small slice of jalapeño if desired.