01 - Set oven to 425°F and allow to fully preheat.
02 - In a mixing bowl, toss diced potatoes with olive oil, smoked paprika, garlic powder, salt, and black pepper. Arrange evenly on a baking sheet and roast for 25 to 30 minutes, flipping once midway through, until golden and crisp.
03 - While the potatoes roast, heat a large skillet over medium heat. Add ground beef or plant-based alternative and cook for 3 to 4 minutes until browned. Stir in diced onion and minced garlic, continuing to cook until softened, about 3 minutes.
04 - Incorporate taco seasoning, tomato sauce, and water. Reduce heat and simmer for 5 to 7 minutes until mixture thickens. Taste and adjust salt as needed.
05 - While filling simmers, rinse black beans, halve cherry tomatoes, dice avocado, and shred cheese if necessary.
06 - Divide roasted potatoes between four serving bowls. Layer with taco filling, black beans, tomatoes, corn, cheese, avocado, jalapeños if using, and chopped cilantro. Finish each bowl with a drizzle of sour cream or Greek yogurt.
07 - Present bowls immediately, optionally accompanied by lime wedges for extra zest.