01 - Preheat the oven to 400°F.
02 - Brush both sides of each tortilla lightly with olive oil. Drape tortillas over inverted oven-safe bowls or place into oven-safe tortilla molds.
03 - Bake for 8 to 10 minutes until golden and crisp. Cool slightly before removing from molds.
04 - Heat a large skillet over medium heat. Add ground beef and cook, breaking it apart with a spoon, until browned, approximately 5 minutes.
05 - Add chopped onion and minced garlic to the beef. Sauté for 2 to 3 minutes until softened.
06 - Stir in chili powder, ground cumin, smoked paprika, oregano, salt, and black pepper. Cook for 1 minute to bloom the spices.
07 - Add tomato paste and water to the beef mixture. Simmer for 3 to 4 minutes until thickened. Remove from heat.
08 - In a small bowl, whisk together sour cream, salsa, and lime juice until well combined.
09 - Divide chopped romaine lettuce, diced tomato, black beans, corn, and sliced red onion evenly among the crispy tortilla shells.
10 - Distribute seasoned beef equally over each salad. Top with shredded cheddar cheese, avocado slices, and black olives if desired.
11 - Drizzle each salad with prepared dressing and serve immediately.