01 - Preheat the oven to 425°F.
02 - Toss diced potatoes with olive oil, smoked paprika, garlic powder, ground cumin, chili powder, salt, and black pepper in a large mixing bowl. Spread evenly across a baking sheet in a single layer.
03 - Roast for 25 to 30 minutes, tossing halfway through, until golden and crispy on the edges.
04 - While the potatoes roast, combine black beans, ground cumin, smoked paprika, and salsa in a small saucepan over medium heat. Cook, stirring occasionally, until heated through, about 5 minutes.
05 - Divide the roasted potatoes among four serving bowls. Top each with a scoop of the warm black bean mixture, then sprinkle with shredded cheddar cheese while still hot so it begins to melt.
06 - Arrange cherry tomatoes, red onion, corn kernels, diced avocado, chopped cilantro, and sliced jalapeños over each bowl as desired.
07 - Drizzle sour cream or Greek yogurt over the top and serve immediately with a squeeze of fresh lime.