In a small bowl, combine honey, tamari soy sauce, garlic, ginger, and red pepper flakes. Stir until well combined.

Place shrimp in a separate bowl and pour one-third of the sauce over them. Toss to coat, and let marinate for 15-20 minutes.

Heat olive oil in a pan over medium-high heat. Add the shrimp (discarding any leftover marinade) and cook for 1–2 minutes on each side until the shrimp turn pink and are just cooked through.

Add the remaining sauce to the pan, stirring with the shrimp. Allow the sauce to simmer for about a minute, letting it reduce slightly and warm through.

Remove from heat and stir in the chopped cilantro or parsley. Garnish with sliced green onions and serve immediately.