01 - Preheat oven to 425°F and line a baking sheet with parchment paper.
02 - Toss diced potatoes with olive oil, smoked paprika, garlic powder, salt, and black pepper in a large bowl until evenly coated.
03 - Spread seasoned potatoes evenly on the prepared baking sheet. Roast for 25–30 minutes, tossing halfway through, until golden brown 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 until fragrant. Add ground beef, breaking it apart with a spoon, and cook for 5–7 minutes until fully browned.
06 - Stir in chili powder, cumin, oregano, smoked paprika, salt, and cayenne pepper. Cook for 1 minute until spices become fragrant.
07 - Pour in tomato sauce and water. Reduce heat and simmer for 5 minutes, stirring occasionally, until sauce thickens. Remove from heat.
08 - Whisk together sour cream, lime juice, ground cumin, and a pinch of salt in a small bowl until smooth and well combined.
09 - Divide roasted potatoes among 4 bowls. Layer with taco beef, cheddar cheese, cherry tomatoes, lettuce, black beans, corn, avocado, green onions, and cilantro.
10 - Drizzle lime crema over each bowl. Serve immediately with lime wedges on the side.