Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Pat the chicken breast dry with paper towels and cut into 1-inch bite-sized pieces.
Rinse and drain the chickpeas, then pat them very dry to ensure they become crisp during roasting.
In a large mixing bowl, whisk together the olive oil, turmeric, garlic powder, sea salt, and black pepper.
Add the chicken pieces, dried chickpeas, and broccoli florets to the bowl, tossing thoroughly until every piece is coated in the golden spice oil.
Spread the mixture in a single, even layer on the prepared baking sheet, ensuring nothing is overcrowded.
Roast for 20 to 25 minutes, tossing the ingredients halfway through, until the chicken is cooked through and the chickpeas are slightly crisp.
Remove from the oven and drizzle the fresh lemon juice over the bowl before serving warm.