Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Slice the Russet potato into very thin rounds using a mandoline or a sharp knife for uniform crispness.
Toss the potato slices in a bowl with half of the olive oil and a pinch of sea salt until evenly coated.
Arrange the slices in a single layer on the baking sheet and bake for 15-20 minutes, flipping halfway through, until golden and crisp.
While the chips bake, season the chicken breast with the remaining olive oil, garlic powder, dried oregano, sea salt, black pepper, and lemon juice.
Heat a grill pan or cast-iron skillet over medium-high heat and cook the chicken for 6-7 minutes per side until the internal temperature reaches 165°F.
Remove the chicken from the heat and let it rest for 5 minutes before slicing it into strips.
Serve the warm, herb-crusted chicken alongside the fresh, salty potato chips.