Preheat the oven to 425°F.
Pat the pork tenderloin dry. Rub it lightly with a pinch of salt, black pepper, chili powder, and garlic powder to coat evenly.
Heat a non-stick skillet over medium-high heat with a small drizzle of olive oil. Sear the pork on all sides until it achieves a crispy, golden-brown crust, about 2 minutes per side.
While the pork is searing, toss the broccoli florets with the remaining olive oil, a pinch of salt, black pepper, and a dash of chili powder.
Place the broccoli on a baking sheet in a single layer. Roast in the oven for about 12-15 minutes until the edges are crispy and lightly charred.
After searing, transfer the pork tenderloin to an oven-safe dish and let it finish cooking in the oven for 8-10 minutes, ensuring an internal temperature of 145°F.
Remove both the pork and broccoli from the oven. Allow the pork to rest for a few minutes before slicing.
Serve sliced pork tenderloin alongside the roasted broccoli, and enjoy the harmonious blend of spicy, crispy flavors.