Irish Nachos

Name: Irish Nachos
Prep time: 10 min
Total time: 10 min
Cuisine: American
Ingredients: 3 lb. Yukon gold potatoes; 4 tbsp. olive oil; 1 tsp. ground black pepper; 1 tsp. garlic powder; Nonstick cooking spray; 2 tsp. kosher salt; 8 slices cooked bacon, crumbled; 2 c. shredded cheddar-jack cheese; Quick pickled onions (optional), sliced green onion, sour cream, and salsa, for serving; 1 small red onion, halved and thinly sliced; 1/2 c. white vinegar; 1 tsp. sugar; 1/2 tsp. kosher salt