Upgrade your traditional holiday side dish with this quick and easy cheesy green bean casserole recipe! Made with a creamy green bean filling and topped with a crisp, cheesy breadcrumb topping,
Preheat the oven. Bring a pot of water to a boil. Blanch green beans. Remove and drain the veggies, and immediately transfer them to a bowl of ice water to stop the cooking process. Then, drain and set them aside.
Melt the butter in a large skillet over medium-high heat. Add the onions and garlic, and sauté just until fragrant. Add the mushrooms, and allow them to soften. Stir in the flour, and cook for an additional few minutes.
Remove the skillet from the heat, and add the pimentos, pepper jack, salt, pepper, and thyme, stirring to combine. Remove the skillet from the heat, and add the pimentos, pepper jack, salt, pepper, and thyme, stirring to combine.
Arrange the green beans in the bottom of the prepared baking dish. Pour half the roux mixture on top, spreading it out evenly. Next, sprinkle the cheddar cheese over the roux followed by the breadcrumbs.
Transfer the cheesy green bean casserole to the oven, and bake just until the top is bubbly and the panko is golden brown.