In a small bowl, whisk together olive oil, garlic, and parsley flakes. Set aside.

On a plate, combine the coffee granules, salt, pepper, poppy seeds, and sesame seeds.

Heat a skillet and spray liberally with nonstick cooking spray.

Brush the tuna steaks liberally with the prepared oil mixture (alternatively, dip them into it). Coat the steaks in the coffee mixture.

Pan-sear the steaks for one and a half minutes per side for perfect rare tuna steaks. Slice and serve.