Marinate salmon fillets with the salt and lemon juice for 15 minutes.
Blend all pesto ingredients in a food processor or blender. You can also add more olive oil, a little at a time, towards the end. You want the pesto to be blended yet not smooth. It is best with a little texture.
Top salmon fillets with the pumpkin pesto.
Bake at 350 degrees Fahrenheit for 13 to 15 minute