For the salmon: Preheat oven to 375F (190C). Line baking tray with parchment paper and set aside.
Make the crust mixture: place pistachios in a blender and blend into fine crumbs (you also can do It by chopping with a knife), transfer into a bowl. Then dd breadcrumbs, garlic, parsley, mint, salt, pepper, lemon juice and mix well.
Place salmon on the prepared baking sheet. Season each fillet with salt and pepper. Brush each salmon fillet with mustard, then sprinkle the crust mixture on top of each fillet and lightly press.
Bake for 15 minutes or until salmon flakes easily with fork.
For the side (optional): cut the ends of the asparagus.
Fill a large pot with water and bring to a boil. When boiling, blanch the asparagus for 30 seconds. Then, immediately transfer to a bowl with ice water and allow to cool.
In a medium pan, drizzle olive oil and add butter. Melt over medium heat. Add the asparagus. Add lemon zest and sauté for 2 minutes.