Heat a pan over medium heat and add the butter. Once melted, add the diced onion and sauté for 1-2 minutes until translucent.

Add the diced green and red bell peppers to the pan and sauté for an additional 2-3 minutes until slightly softened.

Add the corn kernels to the pan and continue sautéing for another 2-3 minutes until they are cooked and slightly browned.

Reduce the heat to low and add the mayo. Stir well to combine.

Add the shredded mozzarella cheese to the pan and continue stirring until the cheese has melted and is evenly distributed throughout the mixture.

Season with salt and pepper to taste. Serve hot and enjoy!