To make the sauce, combine the orange juice, ketchup, and lemon juice. Place each slice of fish on top of a slice of cucumber. Top with segmented orange and a drizzle of the sauce.

In a large glass bowl, combine the tuna, onion, cilantro ... Sear the Tune on all four sides until golden brown…maybe 2-3 minutes. Slice in 4 pieces/or take the whole piece and put on the ...