01 - Preheat the oven to 400°F. Brush both sides of each tortilla lightly with olive oil. Drape tortillas over inverted oven-safe bowls or shape them into oven-safe tortilla molds.
02 - Bake for 8–10 minutes, or until golden and crisp. Cool slightly before removing from molds.
03 - Heat a large skillet over medium heat. Add ground beef and cook, breaking up with a spoon, until browned (about 5 minutes).
04 - Add onion and garlic, sauté for 2–3 minutes until softened.
05 - Stir in chili powder, cumin, smoked paprika, oregano, salt, and pepper. Cook for 1 minute.
06 - Add tomato paste and water; simmer for 3–4 minutes, until thickened. Remove from heat.
07 - In a small bowl, mix sour cream, salsa, and lime juice to make the dressing.
08 - Divide lettuce, tomato, black beans, corn, and red onion among the crispy tortilla shells.
09 - Top each with seasoned beef, cheddar cheese, avocado slices, and olives if using.
10 - Drizzle with dressing. Serve immediately.