Preheat oven to 375 degrees.
Set salmon filet on baking sheet laid with parchment paper. Spray avocado oil on top.
Season salmon with black pepper then smear pesto all over to cover the whole filet.
Place in oven to bake for 15 minutes.
Remove baking sheet then use a fork to break off into smaller pieces. Salmon should be completely cooked at this point. If not, put back in oven for a few more minutes.