01 - Combine tomatillos, cilantro, green onions, garlic, lime juice, jalapeño, and salt in a blender or food processor. Blend until smooth. Taste and adjust seasoning if needed. Refrigerate until ready to use.
02 - Heat olive oil in a large skillet over medium heat. Add onion, garlic, and jalapeño; cook for 2–3 minutes until softened.
03 - Add the ground beef, breaking it up with a spoon, and cook until browned, about 5–6 minutes.
04 - Stir in chili powder, cumin, smoked paprika, coriander, oregano, salt, and black pepper. Cook for 1 minute until fragrant.
05 - Add tomato paste and beef broth (or water). Mix well and simmer for 4–5 minutes until thickened. Remove from heat.
06 - Spoon spicy beef onto each tortilla. Top with shredded lettuce, diced tomatoes, crumbled cheese, salsa verde, and fresh cilantro.
07 - Serve immediately with lime wedges on the side.