Sheet Pan Cheesy Swamp Potatoes with Ham Step-by-step instructions

Before you start

Before beginning, ensure the oven rack is positioned in the center to allow for even heat circulation. Prepare the ingredients by cutting the ham steak into uniform cubes, approximately one inch in size. Wash and scrub the baby potatoes thoroughly, then slice them into even halves.

Trim the ends of the green beans and pat them dry with a clean kitchen towel to ensure they roast properly rather than steaming. Having all ingredients measured and ready to go before turning on the oven will make the process smooth and efficient.

Instructions

Preparation and Assembly

1. 1Assemble the Pan
   Preheat the oven to 400°F (200°C). Line a rimmed sheet pan with parchment paper. Arrange the ham cubes, halved baby potatoes, and trimmed green beans in a single, even layer across the pan to ensure they roast evenly.
   Look for The ingredients should be spread out without overlapping too much to allow for proper roasting.
   Tip Using a large enough sheet pan prevents crowding, which keeps the vegetables crisp rather than steamed.

The pan should be filled with a single, uniform layer of ham, potatoes, and green beans. Everything should be arranged neatly, with the potatoes cut sides facing down to encourage better browning.

Ensure there is enough space between the ingredients for air to circulate, which is the key to achieving the desired crispness. Verify that the parchment paper is laying flat against the bottom of the pan and that no ingredients are piled on top of each other, as this will lead to uneven cooking times.

Roasting the Components

2. 2Season and Bake
   In a small bowl, whisk together the melted butter and dry onion soup mix until combined. Drizzle this mixture evenly over the ham and vegetables. Place the pan in the oven and bake for 25 minutes, or until the potatoes are tender and golden.
   Look for The butter mixture should coat all ingredients lightly, and the potatoes should be fork-tender.
   Tip If the green beans are very thin, you can add them halfway through the cooking time to keep them bright and crisp.

The mixture of butter and onion soup should be drizzled evenly, ensuring all ingredients are lightly coated. After 25 minutes of roasting, the potatoes should show signs of golden-brown edges and the ham should be heated through. The green beans should look tender and slightly charred in some spots. Before proceeding to the final phase, perform a quick check with a fork to ensure the potatoes are soft all the way through, as this is the most time-consuming component of the dish.

Finishing with Cheese

3. 3Melt and Serve
   Remove the pan from the oven and sprinkle the shredded cheddar cheese over the hot ingredients. Return the pan to the oven for an additional 5 minutes until the cheese is completely melted and bubbling. Let the dish rest for 5 minutes before serving at 145°F (63°C).
   Look for The cheese should be fully melted, smooth, and golden, with no loose shreds remaining.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip A quick blast under the broiler for the final minute can add a toasted finish to the cheese if desired.

The final result should be a cohesive, golden-brown layer of melted cheese covering the roasted ham and vegetables. There should be no loose, unmelted shreds of cheese, and the aroma should be savory and inviting. The edges of the ham should be slightly crispy. Allow the pan to rest for at least 5 minutes before serving, as this helps the cheese set slightly and makes it easier to portion out the ingredients onto plates using a metal spatula.

Common mistakes

A common mistake is overcrowding the sheet pan, which traps steam and prevents the ingredients from browning. Always use a large pan or two smaller ones if necessary to maintain a single layer. Another issue is failing to dry the green beans after washing; residual water will lead to soggy vegetables.

Additionally, ensure the cheese is added only in the final stage of cooking; adding it too early can cause the cheese to separate or become overly browned and bitter before the vegetables are fully roasted.

How to tell it’s done

The dish is considered done when the potatoes are fork-tender and the cheese is fully melted, smooth, and golden. The internal temperature of the ham should reach 145°F (63°C). Because the ham is already cured, the primary goal is to heat it through and achieve a slight browning on the edges.

The green beans should be vibrant and tender but still retain a slight snap. If the potatoes require more time, cover the pan loosely with foil to prevent the cheese from burning while they finish cooking.

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