Set the mixer to low speed and slowly add the heavy cream until well incorporated. Add the green onion, dill, chives, lemon zest, lemon juice, salt and pepper(s). Whisk until the mixture thickens and firms.
1 cup heavy cream, 3 tbsp minced green onions, 2 tbsp minced fresh dill, 1 tbsp minced fresh chives, 1 tbsp lemon zest, 1 tbsp freshly-squeezed lemon juice, 1 tsp fine sea salt, ½ tsp freshly ground black pepper, ⅛ tsp crushed red pepper flakes