Instructions:
- Season steak with cumin, smoked paprika, salt and pepper. Drizzle with oil.
- Grill over high heat for 3–4 minutes per side for medium-rare. Rest for 5 minutes.
- Make fresh salsa: dice tomatoes and onion, mix with chopped cilantro and lime juice. Season.
- Warm tortillas in a dry pan for 30 seconds each side.
- Slice steak thinly against the grain.
- Assemble tacos: tortilla → steak slices → avocado → salsa → squeeze of lime → cilantro. Serve immediately.