Coat ahi tuna steak with five-spice powder and steak seasoning (or salt and pepper).

Heat a grill pan or griddle over high heat.

Spray the grill surface with cooking spray or wipe with a thin layer of oil.

Sear tuna steak for 2 minutes on each side.

Remove tuna from heat and let rest.

Combine mixed greens, radishes, and cucumber in a bowl.

In a smaller bowl, whisk wasabi paste, rice vinegar, and soy sauce.

Whisk in extra virgin olive oil to combine the dressing.

Drizzle dressing over the salad and toss to coat evenly.

Slice tuna on an angle and arrange on the salad.