In a large skillet over medium-high heat, add the butter and the frozen corn.
Cook for 8-10 minutes stirring often until the corn is cooked through and has a charred look to it.
Remove from skillet and place in a large bowl.
Add the red onion, lime juice, lime zest, bell pepper, cilantro, and jalapeño.
Stir to combine.
Add the sour cream and the Cojita cheese
Stir to complete. Garnish with more cilantro or sliced green onion and a little lime zest.
Enjoy with friends and a margarita!