Preheat your oven to 425°F. Line a baking sheet with parchment paper.
In a bowl, toss the diced red bell pepper, zucchini, and red onion with olive oil, salt, and pepper. Spread the vegetables evenly on the baking sheet.
Place the vegetables in the oven and roast for about 20-25 minutes until they are tender and lightly caramelized.
While the vegetables roast, season the chicken breast with salt, pepper, cumin, paprika, and garlic powder on both sides.
Heat a non-stick skillet over medium-high heat. Sear the chicken for 2-3 minutes on each side until golden brown.
Lower the heat to medium, add a splash of water or broth if needed, and cook the chicken through for an additional 5-7 minutes, ensuring the internal temperature reaches 165°F.
In a small bowl, mix the nonfat Greek yogurt with a pinch of salt, pepper, and a dash more cumin or paprika if desired, to form a creamy spiced sauce.
Slice the cooked chicken and serve it over a bed of roasted vegetables, drizzling the yogurt sauce on top.
Enjoy your balanced and flavorful Creamy Spiced Chicken with Roasted Vegetables!