Preheat the oven to 425°F (220°C). Cook the soya granules according to the package instructions, squeeze out the excess water, and set aside.
Cut the bell peppers in half lengthwise, remove the seeds, drizzle with 1 tbsp olive oil.
Season it with black pepper and garlic salt, arrange them in a 9×13-inch baking dish, and bake for 20 minutes.
Meanwhile, heat the remaining olive oil in a pan and sauté the garlic until fragrant.
Add the onions and cook until translucent.
Stir in the diced tomatoes, and saute for a minute
Add the frozen corn and saute for a minute
Add the, dried basil, red chilli powder, cumin powder and mix well
Add the cooked soya granules, and saute
Now add the salt, garlic salt, black pepper, and mix well
Pour in the water, and mix well
Cover, and cook for 5–7 minutes.
Remove the lid and cook until the mixture becomes dry. Stir in the cooked rice, cilantro.
Add ¾ cup of the mozzarella cheese, and mix well.
Stuff the roasted pepper generously with the prepared filling and Top with the remaining mozzarella cheese.
Bake for 15 minutes at 425°F, or until the cheese is melted and golden brown. Serve hot.