Preheat your oven to 425°F and line a large baking sheet with parchment paper.
Slice the russet potato into thin, uniform fries and toss them with 0.25 tablespoons of olive oil and a pinch of sea salt.
Spread the potatoes in a single layer on the baking sheet and roast for 25-30 minutes, flipping halfway, until golden and crispy.
While the fries roast, dice the chicken breast into small bite-sized pieces.
In a bowl, toss the chicken with the remaining 0.25 tablespoons of olive oil, chili powder, cumin, garlic powder, salt, and pepper.
Heat a cast-iron skillet over medium-high heat and sear the chicken for 6-8 minutes until cooked through and slightly charred.
In a small bowl, mash the avocado with lime juice and a pinch of salt until smooth and creamy.
Layer the roasted potato fries on a plate, top with the warm chicken asada, a dollop of guacamole, fresh pico de gallo, and chopped cilantro.