Preheat the oven to 350 degrees and line a sheet pan with parchment paper. Set aside
Whisk the lemon zest, juice, Greek yogurt, oregano, garlic, crushed red pepper, olive oil, salt and pepper in a medium bowl until smooth. Place the chickpeas into the bowl and toss until combined.
Spread out evenly in one layer into the center of the prepared sheet pan and sprinkle with ½ tsp more salt.
Slice the peppers and onions and place them around the chickpeas on the prepared sheet pan.
Drizzle the chickpeas, onions and peppers with 2 tbsp olive oil
Bake in the oven for 15 minutes.