Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Dice the chicken breast, zucchini, and red bell pepper into bite-sized pieces, and slice the mushrooms.
Place the chicken and vegetables on the baking sheet, drizzle with olive oil, and sprinkle with garlic powder, onion powder, sea salt, and black pepper.
Toss everything together until evenly coated, then spread into a single layer.
Roast in the oven for 18 to 20 minutes, or until the chicken is cooked through and the vegetables are tender with slightly browned edges.
Transfer the roasted chicken and vegetable mixture into a skillet over low heat.
Pour in the full-fat coconut milk and stir gently for 1 to 2 minutes until the sauce warms through and creates a creamy glaze.
Garnish with chopped fresh parsley and serve immediately.