Preheat your oven to 425°F and line a large baking sheet with parchment paper for easy cleanup.
Dice the russet potato into small 1/2-inch cubes and toss them on the baking sheet with 0.25 tbsp of olive oil, sea salt, and black pepper.
Roast the potatoes for 25-30 minutes, tossing halfway through, until they are golden and crispy on the outside.
While the potatoes roast, slice the chicken breast into thin strips and chop the red bell pepper into similar sized pieces.
In a small bowl, whisk together the minced chipotle peppers, lime juice, and garlic powder to create the spicy glaze.
Heat the remaining 0.25 tbsp of olive oil in a large non-stick skillet over medium-high heat.
Add the chicken and bell peppers to the skillet, sautéing for 6-8 minutes until the chicken is fully cooked and the peppers are tender-crisp.
Pour the chipotle glaze over the chicken and peppers, stirring constantly for 1 minute until everything is glossy and well-coated.
Divide the crispy roasted potatoes onto plates and top with the spicy chipotle chicken mixture.
Garnish with freshly chopped cilantro and an extra squeeze of lime if desired before serving.