Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper.
Slice the chicken breast into thin, bite-sized strips and thinly slice the bell peppers and red onion.
In a large mixing bowl, whisk together the olive oil, lemon juice, minced garlic, cumin, coriander, turmeric, sea salt, and black pepper.
Add the chicken strips, peppers, and onions to the bowl, tossing thoroughly until every piece is well-coated in the spice marinade.
Spread the mixture in a single, even layer onto the prepared baking sheet to ensure maximum crispiness.
Roast for 18 to 20 minutes, or until the chicken is cooked through and the vegetables have developed slightly charred, caramelized edges.
Remove from the oven and garnish with freshly chopped parsley before serving warm.