Rinse the quinoa thoroughly under cold water and drain well.
Combine the rinsed quinoa and vegetable broth (or water) in a medium saucepan. Bring to a boil, then reduce heat to low and cover. Simmer for about 15 minutes until liquid is absorbed. Fluff with a fork.
Whisk together olive oil, lemon juice, lemon zest, minced garlic, red pepper flakes, sea salt, and black pepper in a small bowl.
Transfer the cooked quinoa to a large mixing bowl. Gently fold in the rinsed chickpeas, parsley, mint, dill, and green onions.
Drizzle the dressing over the quinoa mixture and toss gently until well combined. Adjust seasoning if necessary.
Serve in bowls or plates, adding optional toppings like cucumber or feta cheese if desired.