Make the sauce: Combine the tomato sauce, italian seasoning, garlic powder, onion powder, salt and pepper in a small bowl. Set aside.
Pack the Lunchables: In a divided lunchbox or bento box, divide the mini naan bread, shredded cheese, pepperoni and diced bell peppers. Put the sauce into a small, leakproof container.
To serve: Spread the sauce onto the naan bread. Top with cheese, pepperoni and diced peppers. Enjoy cold or microwave 20-30 seconds to melt cheese before serving.