Preheat your oven to 400°F (200°C). Peel and cube the sweet potato into bite-sized pieces. Toss with olive oil, salt, pepper, and a pinch of dried herbs.
Spread the sweet potato cubes on a baking sheet and roast for 20-25 minutes, stirring halfway, until tender and slightly crispy.
While the sweet potatoes roast, prepare the chicken. Pat the chicken breast dry and season with salt, pepper, garlic powder, lemon juice, and remaining dried herbs.
Heat a non-stick skillet over medium-high heat. Cook the chicken for about 5-6 minutes per side or until the internal temperature reaches 165°F, ensuring a crispy exterior.
For the creamy avocado dressing, slice the avocado and mash it in a bowl with a splash of lemon juice, a pinch of salt, and a little water to thin if needed.
Assemble your power bowl by placing mixed greens at the base, topping with roasted sweet potatoes, sliced or chopped chicken, and drizzling the creamy avocado dressing over the top.
Serve immediately and enjoy your nutrient-packed, flavor-rich power bowl.