Preheat your oven to 350°F (175°C) and grease a 9-inch pie dish with butter.

Melt a tablespoon of butter in a skillet over medium heat. Add chopped yellow onion and sauté for about 5 minutes until soft. Stir in minced garlic and cook for 1 more minute.

Incorporate corn kernels into the skillet, sauté for another 2-3 minutes.

In a mixing bowl, whisk together eggs, milk, salt, and pepper until smooth.

Fold the sautéed corn mixture into the egg and milk blend, then add shredded cheddar cheese.

Pour the filling into the greased pie dish.

Bake for 35-40 minutes until the center is set and lightly golden.

Cool for 10 minutes before slicing.