Heat the griddle. Set your Blackstone to medium-high and let it fully preheat. Drizzle on the olive oil and add the chopped onion. Cook, stirring, until soft and translucent.
Add the garlic. Stir in the minced garlic and cook about 30 seconds, until fragrant.
Brown the beef. Add the ground beef and break it apart with a spatula, spreading it across the hot surface. Cook until browned with no pink remaining, letting it sear for crispy edges.
Season. Sprinkle the chili powder, cumin, smoked paprika, salt, and pepper over the meat. Stir to coat evenly, then cook another 2–3 minutes so the flavors meld.
Serve. Remove from heat and serve immediately in tacos, bowls, or burritos. Top with cheese, lettuce, salsa, avocado, or your favorites.