01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, toss diced potatoes with olive oil, smoked paprika, garlic powder, salt, and black pepper until evenly coated.
03 - Spread potatoes evenly on the prepared baking sheet. Roast for 25 minutes, flipping halfway through, until golden and crispy.
04 - While potatoes roast, heat a large skillet over medium heat. Add ground beef and cook, breaking up with a spoon, until browned, about 5–6 minutes. Drain excess fat if needed.
05 - Add onion and garlic to the beef. Sauté for 2–3 minutes until softened and fragrant.
06 - Stir in taco seasoning, salt, and water. Simmer for 2–3 minutes until sauce has thickened slightly.
07 - Divide roasted potatoes among four bowls. Top each with taco beef, then arrange cheddar cheese, sour cream, cherry tomatoes, black beans, lettuce, avocado, green onions, cilantro, jalapeño, and salsa as desired.
08 - Serve immediately, garnished with extra cilantro and a wedge of lime if desired.