Cook the ramen noodles according to package instructions. Drain and set aside.
In a large skillet, heat the vegetable oil over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant.
Add the thawed corn to the skillet and cook for 2-3 minutes until slightly golden.
Stir in the gochujang, soy sauce, sugar, and sesame oil. Mix well to combine.
Add the cooked ramen noodles to the skillet and toss everything together until the noodles are well coated in the sauce. Season with salt and pepper to taste.
Sprinkle the shredded mozzarella cheese over the noodles and cover the skillet. Cook for an additional 2-3 minutes until the cheese is melted and bubbly.
Remove from heat and garnish with chopped green onions before serving.