Preheat your oven to 400°F (200°C) and line a small baking sheet with parchment paper.
Peel the golden beet and cut it into 1/2-inch cubes. Toss with 0.5 tbsp of olive oil and a pinch of sea salt.
Spread the beets on the baking sheet and roast for 20-25 minutes, or until they are tender and slightly caramelized on the edges.
While the beets roast, season the chicken breast on both sides with garlic powder, sea salt, and black pepper.
Heat the remaining 0.5 tbsp of olive oil in a non-stick skillet over medium-high heat.
Place the chicken in the pan and sear for 6-7 minutes per side, or until the exterior is golden and crispy and the internal temperature reaches 165°F.
Remove the chicken from the pan and let it rest for 5 minutes before slicing it into thin strips.
In a large salad bowl, whisk together the lemon juice and a tiny pinch of salt to create a light dressing.
Add the arugula to the bowl and toss gently to coat the leaves.
Top the greens with the warm roasted beets, sliced avocado, pumpkin seeds, and the sliced crispy chicken. Serve immediately.