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