Preheat the oven to 425°F (220°C) and line a baking sheet with parchment paper.
Cut the cauliflower into bite-sized florets and set aside. In a bowl, mix the chickpea flour with a pinch of salt, pepper, and garlic powder. Add a little water to form a smooth batter.
Toss the cauliflower florets in the chickpea batter ensuring an even coating. Spread them evenly on the prepared baking sheet.
Roast the cauliflower in the oven for 20-25 minutes, flipping halfway through, until they are golden and crispy.
Meanwhile, in a small bowl, toss the shelled edamame with 1 tablespoon of buffalo sauce, salt, and pepper. Spread them on a separate baking tray and roast for about 15 minutes or until slightly crispy.
For the herb ranch drizzle, combine the nonfat Greek yogurt, finely chopped parsley, dill, lemon juice, and a pinch of garlic powder in a bowl. Mix well and season with salt and pepper to taste.
Once all components are roasted, plate the crispy buffalo cauliflower and the roasted edamame together. Drizzle generously with the herb ranch sauce and finish with an extra drizzle of buffalo sauce if desired.