Step 1: Preheat Your Oven
Preheat your oven to 400°F (200°C). This ensures that the chicken and vegetables cook evenly and develop a nice caramelization.
Step 2: Create the Marinade
In a large mixing bowl, whisk together soy sauce, olive oil, garlic powder, paprika, salt, and pepper. This marinade is the key to infusing the chicken with flavor.
Step 3: Marinate the Chicken
Add the diced chicken to the marinade, ensuring every piece is coated thoroughly. Let the chicken marinate for at least 15 minutes, or up to 30 minutes for a more intense flavor. While the chicken marinates, prepare the vegetables.
Step 4: Prep the Vegetables and Pineapple
Chop the bell pepper and red onion into 1-inch pieces. If using fresh pineapple, cut it into even chunks. This ensures that everything cooks evenly on the sheet pan.
Step 5: Assemble on the Sheet Pan
Spread the marinated chicken, chopped vegetables, and pineapple chunks onto a large sheet pan. Make sure everything is arranged in a single layer to promote even cooking.
Step 6: Roast to Perfection
Place the sheet pan in the preheated oven and roast for 25-30 minutes, or until the chicken is cooked through and the vegetables are tender. About halfway through, use a spatula to toss the ingredients gently, ensuring even browning. The chicken should reach an internal temperature of 165°F (74°C).
Step 7: Serve and Savor
Once roasted to perfection, remove the pan from the oven and let it rest for a few minutes before serving. This allows the flavors to meld together. Serve hot, either over fluffy steamed rice, alongside quinoa, or as a standalone dish.