Preheat oven to 400°F and line a large baking sheet with parchment paper.
Rinse and drain the chickpeas, then pat them thoroughly dry with a clean kitchen towel to ensure they crisp up properly.
Cut the chicken breast into small half-inch cubes so they roast at the same rate as the chickpeas.
In a large bowl, combine the dried chickpeas, cubed chicken breast, and pumpkin seeds.
Drizzle the mixture with olive oil and sprinkle with smoked paprika, garlic powder, sea salt, and black pepper.
Toss everything together until the ingredients are evenly coated in the oil and spices.
Spread the mixture in a single layer on the prepared baking sheet, making sure there is space between the pieces.
Roast for 20 to 25 minutes, shaking the pan halfway through, until the chicken is cooked through and the chickpeas are golden.
Allow the mix to cool for 5 minutes on the pan to let the chickpeas reach their maximum crunch before serving.