Seared flank steak with tomato/blue cheese

flank steak trimmed
4 t olive oil
3/4 t kosher salt
1/2 t pepper
1/12 t white wine vinegar
1/4 c chopped red onion
2 c grape tomatoes, quartered
1 oz crumbled blue cheese

Heat large skillet over medium-high heat till hot. Brush steak with 1 t olive oil, a little salt and pepper. Cook 2 minutes on each side (more or less depending on you). Take off heat and let rest 5 minutes before cutting into thin slices.

Combine 1 T olive oil, salt, pepper, vinegar in a medium bowl, and whisk. Add onions and tomatoes and toss.

Divide steak and tomato mixture among 4 plates. Sprinkle with blue cheese.