01 -
Preheat the oven to 190°C and line a large baking pan with parchment paper. Slice poblanos in half lengthwise and carefully remove seeds while preserving the shape. Arrange cut side up on the baking sheet.
02 -
Heat a large skillet over medium heat. Add ground beef and cook for 5 minutes, breaking it up as it browns.
03 -
Stir in chopped onion and continue cooking for 3 minutes until softened.
04 -
In a small bowl, whisk together teriyaki sauce and cornstarch until fully blended. Pour over beef mixture in skillet and simmer for 2 minutes to thicken.
05 -
Add chopped broccoli florets and cooked brown rice to the skillet. Stir until evenly combined and heated through.
06 -
Spoon the beef mixture into each prepared poblano half. Cover baking pan tightly with aluminum foil and bake for 20 minutes.
07 -
Serve hot, garnished generously with chopped cilantro.