Preheat your oven to 375°F and grease a 9×13-inch baking dish with olive oil.

Heat olive oil in a skillet, then add onions, garlic, bell peppers, zucchini, and carrots. Cook until softened, about 5 minutes.

In a large bowl, mix uncooked rice, sautéed vegetables, dried herbs, salt, and pepper. Pour in vegetable broth and stir gently.

Transfer the mixture to the prepared dish, cover with foil, and bake for 30 minutes, uncovering for the last 10 minutes.

Let it rest for 5 minutes, fluff the rice, and top with fresh parsley or cheese as desired.