1.Rub seasoning all over beef. Heat oil in a large frying pan over moderately high heat. Add beef; cook for 5 minutes each side or until cooked to your liking. Cover with foil; rest for 5 minutes. Thinly slice.
2.Meanwhile, combine corn, beans and tomato in a large bowl. Add juice and coriander then salad mix; toss to combine.
3.Spoon salad into shallow serving bowls. Top with beef. Serve with tortillas.
Use lemon juice instead of lime. Budget beef rump (smart-buy rump) is a cheap alternative to rump steak. Bistro salad mix is a convenient blend of butter lettuce, radicchio, pea tendrils and salanova baby red. You can use any salad mix. Use leftover Mexican seasoning in rissoles or tacos.