Irish Nachos (Loaded Potato Nachos)

These Irish nachos are made with sliced yukon gold potatoes roasted until crispy, then layered with sharp Irish cheddar, crumbled bacon, green onions, and sour cream. They’re a naturally gluten-free appetizer that works for St. Patrick’s Day, game day, or any time you want pub-style nachos without the tortilla chips.

The potatoes get roasted at 425°F until they’re golden and crisp on the outside but still tender in the middle, then loaded with toppings and baked again until the cheese melts. The whole recipe takes about 55 minutes with only 10 minutes of hands-on prep. You can also swap the bacon for leftover slow cooker corned beef if you’re making these around St. Patrick’s Day.

Why You’ll Love this Recipe

• Potatoes instead of chips. Sliced roasted potatoes replace tortilla chips, so you get a heartier bite that holds up under the cheese and toppings without getting soggy. They’re naturally gluten-free with no special substitutions needed.
• Only 7 ingredients. Potatoes, oil, salt, cheddar, bacon, green onions, and sour cream. Simple, inexpensive, and most of it is probably already in your kitchen.
• Easy to double for a crowd. Use two sheet pans and double the toppings. These are one of the easiest appetizers to scale up for parties, potlucks, or game day.

Ingredient Notes

• Yellow Potatoes – I use yukon gold potatoes because they’re creamy on the inside and crisp up well in the oven. Red potatoes and russet potatoes also work. Cut them to about ¼-inch thickness so they’re sturdy enough to pick up without flopping over.
• Irish Cheddar – A sharp white Irish cheddar like Kerrygold Dubliner adds a nutty, sharp flavor that makes these taste like pub nachos. Any sharp cheddar works if you can’t find Irish cheddar. Shred it yourself from a block for the best melt since pre-shredded cheese has anti-caking agents.
• Bacon – Cook the bacon before assembling. You can pan-fry it in a skillet or bake it on a foil-lined sheet pan at 400°F for 15-20 minutes. Leftover slow cooker corned beef is a great swap if you’re making these around St. Patrick’s Day.
• Green onions – Added after baking so they stay fresh and bright. Chives work as a substitute.

Pat the Potatoes Dry Before Roasting

This is the step that makes or breaks the crispiness. Potatoes hold a lot of water, and if they go into the oven wet, they steam instead of roast. After slicing, spread the potato rounds on a clean kitchen towel and pat them completely dry on both sides before tossing with oil. This helps the oil stick to the surface and gives you golden, crispy edges instead of soft, pale slices.

Recipe FAQs

Yukon gold potatoes, red potatoes, and russet potatoes all work. Yellow and red potatoes hold their shape better and have a creamier texture. Russets get crispier but can be more fragile. You could also use waffle fries, tater tots, or sweet potato rounds for a different spin.

You can slice and roast the potatoes and cook the bacon up to a day ahead. Store them separately in the fridge. When you’re ready to serve, layer the potatoes and toppings on a pan and bake at 425°F for 8-10 minutes until the cheese melts. Don’t add sour cream and green onions until right before serving.

Expert Tips

• Cut potatoes to a uniform ¼-inch thickness. Consistent sizing means even cooking. If some slices are thicker than others, the thin ones burn while the thick ones stay undercooked. A sharp chef’s knife works better than a mandolin here since mandolins tend to cut too thin for nachos.
• Roast in a single layer with space between slices. Overcrowding the pan traps steam and prevents browning. If your potatoes don’t all fit in one layer, use two sheet pans. Flip them halfway through for even crisping on both sides.
• Layer the toppings in two rounds. Put half the potatoes down, then half the cheese and bacon, then repeat. This way every layer gets toppings instead of just the top, and you don’t end up with a pile of naked potatoes on the bottom.
• Use the oven for large batches of bacon. Line a sheet pan with foil, lay the bacon in a single layer, and bake at 400°F for 15-20 minutes. Way less mess than a skillet and more consistent results. See my full guide on how to cook bacon in the oven for all the details.

Storage Instructions

Refrigerator: Store leftover nachos without the sour cream and green onions in an airtight container for up to 2 days. Reheat on a sheet pan in a 400°F oven for 8-10 minutes until the cheese re-melts and the potatoes crisp back up. The microwave works in a pinch but the potatoes won’t stay crispy.

Make ahead: Roast the potatoes and cook the bacon up to 1 day in advance. Store separately in the fridge. Assemble and bake with cheese when ready to serve.

Serving Suggestions

These Irish nachos work as an appetizer for a bigger spread or as a snack on their own. For a St. Patrick’s Day dinner, serve them alongside cabbage bacon fritters or gluten-free Irish soda bread with butter. For game day, they’re great next to burgers, wings, or a simple green salad to balance out the richness.