01 - Preheat your oven to 400°F.
02 - In a skillet, heat olive oil over medium heat. Add diced onion and sauté until softened, about 2 minutes.
03 - Add black beans, corn, cumin, smoked paprika, chili powder, salt, and pepper. Stir to combine and cook for 2–3 minutes until heated through. Remove from heat.
04 - Arrange tortilla chips in a single layer on a large baking tray or ovenproof platter.
05 - Evenly spoon the bean and corn mixture over the chips. Sprinkle with shredded cheese and sliced jalapeños, if using.
06 - Bake for 8–10 minutes, or until the cheese is melted and bubbly.
07 - Remove from oven and top with diced tomato, avocado, cilantro, and dollops of sour cream and salsa.
08 - Serve immediately with lime wedges on the side.