Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Rinse the chickpeas and pat them thoroughly dry with a clean kitchen towel to ensure they crisp up properly.
Cut the chicken breast into bite-sized 1-inch cubes.
In a large mixing bowl, combine the cubed chicken, dried chickpeas, and shelled edamame.
Drizzle the olive oil over the mixture and sprinkle with sea salt, black pepper, garlic powder, and smoked paprika.
Toss everything together until the chicken and legumes are evenly coated in the oil and spice blend.
Spread the mixture in a single layer on the prepared baking sheet, ensuring there is space between the pieces for airflow.
Roast for 20 to 25 minutes, tossing the ingredients halfway through, until the chicken is cooked through and the chickpeas are golden and crisp.
Remove from the oven and drizzle with fresh lemon juice immediately before serving.