Pre heat the oven to 350 Degrees F (180 Degree C).
Heat cream cheese, butter, milk and parmesan cheese in a pan until everything melts and come together.
Mix corn, bell peppers, jalapeño, salt and pepper in a bowl.
Pour the cream cheese mixture in the bowl and mix well.
Transfer the mixture in a baking dish.
Sprinkle cheddar cheese on top and bake for 35-40 minutes until the cheese brown from top.
Remove the pan from heat and let it sit for 5 minutes.
You can add sour cream in place of cream cheese and milk. No need to heat. Just mix everything else with sour cream in a big bowl. Pour the mix in the baking dish. Bake for 35-40 minutes until the cheese browns. Remove the pan from the oven and let it sit for 5 minutes. Serve hot.