Creamy Holiday Ham and Green Bean Casserole Step-by-step instructions

Before you start

Before beginning the assembly, ensure that all ingredients are measured and ready. If you are using fresh green beans, wash and trim the ends, then blanch them in salted boiling water for about 3 to 4 minutes until they are bright green and tender-crisp.

Drain them thoroughly and pat dry to avoid excess moisture in the casserole. Preheat your oven to 375°F (190°C) and ensure your baking dish is clean and dry. Have your diced ham ready, and if using canned soup, ensure you have a spatula for easy mixing.

Instructions

Mixing the base

1. 1Prepare the casserole base
   Preheat the oven to 375°F (190°C). In a large mixing bowl, combine the cut green beans and the diced cooked ham. Pour in the cream of mushroom soup and stir until the beans and ham are evenly coated with the creamy mixture. Transfer the mixture into the 9x13 inch baking dish and spread it out into an even layer.
   Look for The mixture should be well combined and creamy with no dry spots.
   Tip Ensure the beans are well drained if using canned beans to prevent a watery sauce.

The mixture should be a cohesive, thick blend of beans, ham, and sauce. Check that the sauce is evenly distributed so that no green beans are left dry, as the sauce provides the essential moisture for the baking process.

Baking the casserole

2. 2Add topping and bake
   Distribute the crispy fried onions evenly over the top of the green bean and ham mixture. Place the baking dish into the preheated oven and bake for 25 to 30 minutes until the internal temperature of the ham reaches 145°F (63°C). Let the dish rest for at least 3 minutes before serving.
   Look for The onions should be golden brown and the edges of the sauce should be actively bubbling.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Cover the dish with foil for the first 20 minutes if the onions brown too quickly.

The casserole should be bubbling around the edges, indicating that the heat has penetrated the center. The onion topping should be golden and crispy, providing a fragrant, toasted aroma that fills the kitchen as it finishes.

Resting and serving

3. 3Final rest and serving
   Remove the baking dish from the oven and allow it to rest for 5 minutes before serving. This short resting period allows the creamy mushroom sauce to thicken slightly and settle, making it easier to serve with a spoon. Serve hot, ensuring each scoop includes plenty of the crispy onion topping.
   Look for The sauce will thicken slightly and the dish will be easier to portion.
   Tip Use a large spoon to ensure you get a good balance of beans, ham, and sauce in every serving.

After resting, the casserole should hold its shape better when scooped. Check that the texture of the sauce has thickened slightly and that the dish is warm throughout, ready to be served as a comforting side.

Common mistakes

A common mistake is failing to drain the green beans properly, which can result in a soupy, thin sauce that does not coat the ingredients well. Another error is overloading the dish with too many onions at the start, which can lead to burnt toppings before the center is fully heated.

Ensure the ham is cut into uniform cubes to avoid uneven cooking. Finally, do not skip the resting period; serving immediately out of the oven often results in a runny sauce that lacks the desired thickness.

How to tell it’s done

The casserole is done when the internal temperature of the ham reaches 145°F (63°C), which is easily achieved through the 30-minute bake time.

You will know it is ready by the visual cues: the edges of the mushroom sauce should be bubbling vigorously, and the crispy fried onions on top should be a deep golden brown.

The center should be hot throughout. Let the dish rest for at least 5 minutes before serving to allow the sauce to set to a perfect, creamy consistency.

• Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest