01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
02 - Toss the eggplant cubes with 2 tablespoons olive oil, a pinch of salt, and pepper. Spread them evenly on the prepared baking sheet.
03 - Roast the eggplant for 25-30 minutes, turning once, until golden and tender. Set aside.
04 - Heat the remaining 1 tablespoon olive oil in a large saucepan over medium heat. Sauté the red onion and bell pepper for 4-5 minutes until softened.
05 - Add the minced garlic and cook for 1 minute, stirring frequently.
06 - Stir in the rinsed brown rice, oregano, and red pepper flakes. Cook for 2 minutes to lightly toast the rice.
07 - Pour in the vegetable broth. Bring to a boil, then reduce heat to low, cover, and simmer for 35-40 minutes until the rice is tender and liquid absorbed.
08 - Remove from heat and let the rice sit covered for 5 minutes. Fluff with a fork.
09 - Stir in roasted eggplant, parsley, basil, lemon zest, and lemon juice. Season with salt and pepper to taste.
10 - Serve warm, garnished with extra herbs if desired.