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. Spread evenly on the baking sheet.
03 - Roast potatoes for 25–30 minutes, tossing halfway, until golden and crispy.
04 - Heat 1 tbsp olive oil in a large skillet over medium heat. Add diced onion and sauté for 2–3 minutes until softened.
05 - Add minced garlic and cook for 30 seconds. Add ground beef, breaking it up with a spoon, and cook until browned, about 5–7 minutes.
06 - Stir in chili powder, cumin, oregano, smoked paprika, salt, and cayenne. Cook for 1 minute until fragrant.
07 - Add tomato sauce and water. Simmer for 5 minutes, stirring occasionally, until thickened. Remove from heat.
08 - In a small bowl, whisk together sour cream, lime juice, cumin, and a pinch of salt to make the crema.
09 - Divide roasted potatoes among 4 bowls. Top with taco beef, cheddar cheese, tomatoes, lettuce, black beans, corn, avocado, green onions, and cilantro. Drizzle with crema.
10 - Serve immediately.