Heat 2 tsp oil in skillet over med/high; pat both steaks dry, season with salt/pepper + taco seasoning
Sear steaks undisturbed 2-3 min, flip + cook an additional 2-3 min for med-rare (for more well done add 1-2 min per side)
Rest steaks 5 min on cutting board; cut steaks against grain into ½-inch slices
Meanwhile, heat 2 tbsp oil in skillet over med-high; season veggies with salt/pepper; sauté 4-5 min or until soft + starting to brown; set aside
In batches, heat 4 tortillas in a skillet over med-high 30 sec or until warm
Add fillings to tortillas, top with extra goodies (sour cream + avocado crema) then fold + enjoy!