Preparation: Preheat your oven to 375°F (190°C). Lightly grease a 9x9 inch or medium-sized baking dish with butter or cooking spray.
Season the Chicken: Pat the chicken thighs dry. Rub them thoroughly with salt, pepper, smoked paprika, and oregano until evenly coated on all sides.
Create the Base: In the baking dish, stir together the sweet corn, heavy cream, minced garlic, and exactly half of the shredded cheese.
Assemble: Nestle the seasoned chicken thighs into the corn mixture so they are partially submerged but the tops remain exposed.
The Cheese Topping: Sprinkle the remaining half of the cheese over the top, focusing on the spaces between the chicken to create a golden, bubbling crust.
Bake: Place in the center of the oven and bake for 30–35 minutes. The chicken should be cooked through (internal temp of 165°F) and the sauce should be thick and bubbling.
Serve: Let the casserole rest for 5 minutes to allow the cream sauce to set. Garnish with fresh herbs and serve warm.