Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Toss the cubed sweet potatoes with 1/2 tablespoon of olive oil and a pinch of sea salt, then spread them in a single layer on the baking sheet.
Roast the sweet potatoes for 25-30 minutes until they are tender and the edges are slightly caramelized.
Season the chicken breast with sea salt, black pepper, and garlic powder to taste.
Grill the chicken over medium-high heat for approximately 6-7 minutes per side or until the internal temperature reaches 165°F.
While the chicken and potatoes are cooking, place the kale in a large mixing bowl and drizzle with lemon juice and 1/2 tablespoon of olive oil.
Massage the kale with your hands for about 2 minutes until the leaves are softened and turn a vibrant dark green.
Slice the grilled chicken into thin strips and slice the avocado into wedges.
Divide the massaged kale into bowls and top with the roasted sweet potatoes and grilled chicken.
Finish the bowl with avocado slices and a sprinkle of crunchy toasted pumpkin seeds.
Drizzle the remaining 1/2 tablespoon of olive oil over the top before serving.