This sauce was AWESOME, and I made it all by myself.

Makes about 1 cup:
2 cups unpacked parsley
1 cup unpacked mint
1 cup unpacked basil
1/4 cup olive oil
1/4 cup white wine vinegar or rice vinegar
Juice of 1 lemon

Blend all ingredients, preferably with an immersion blender, until smooth.
If needed, add more oil (and/or vinegar, to taste) to help blend.
Alternatively, double (or triple!) the ingredients to make it easier to blend in a conventional blender. Trust me, you'll eat it all.