Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.
Toss the diced potatoes with olive oil, smoked paprika, garlic powder, cumin, chili powder, salt, and pepper until well coated.
Spread the potatoes in a single layer and roast for 20–25 minutes, flipping halfway, until crispy and golden.
Heat olive oil in a skillet over medium heat. Add onion and cook until soft.
Stir in garlic, cumin, and chili powder, cooking until fragrant.
Add pinto beans and vegetable broth. Mash until smooth or slightly chunky, seasoning to taste.
Warm tortillas and fill with refried beans, crispy potatoes, and your favorite toppings.
Serve Crispy Potato & Refried Bean Tacos with lime wedges and optional hot sauce.