These quick-shot poke bowls are great when you need a hearty snack or a light meal.
In a medium nonreactive bowl (ceramic, glass, etc.), combine the tuna, soy sauce, green onions, sesame oil, sesame seeds, and crushed pepper. Mix it all well, then throw it in the fridge for at least 2 hours.
If you don't have fresh tuna, frozen's fine, though it might not taste as good.