Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Pat the chicken breast dry with a paper towel and slice it into even 1-inch strips to ensure uniform cooking.
In a large mixing bowl, combine the chicken strips, drained chickpeas, and broccoli florets.
Drizzle the extra virgin olive oil over the mixture and toss well to coat every piece.
Sprinkle the sea salt, black pepper, dried rosemary, dried thyme, and garlic powder over the ingredients and toss again.
Spread the mixture in a single layer on the prepared baking sheet, making sure not to overcrowd the pan so the vegetables roast rather than steam.
Roast in the center of the oven for 18 to 22 minutes until the chicken is cooked through and the broccoli has developed golden, crispy edges.
Remove from the oven and drizzle with fresh lemon juice to brighten the savory herb flavors before serving.