Preheat your oven to 400°F and line a small baking sheet with parchment paper.
In a bowl, toss the broccoli florets and chopped red bell pepper with 1.5 teaspoons of olive oil, half the sea salt, and half the garlic powder.
Spread the vegetables on the baking sheet and roast for 15-20 minutes until the edges are slightly charred and tender.
While the vegetables roast, season the chicken breast with the remaining sea salt, black pepper, garlic powder, and dried oregano.
Heat the remaining 1.5 teaspoons of olive oil in a non-stick skillet over medium-high heat.
Place the chicken in the skillet and sear for 6-7 minutes per side, or until the internal temperature reaches 165°F and the exterior is golden brown.
Allow the chicken to rest for 3 minutes before slicing and serving alongside the roasted vegetables.