Mustard-Crusted Tuna Steaks


This cat knows he wants some!


Seasoning the raw tuna fillets…

If you serve it whole^ …

All’s well that end’s well. XD


  • 2 sushi-quality tuna steaks, thick
  • 1/2 cup yellow mustard seeds
  • 1 teaspoon sea salt flakes
  • 1/2 teaspoon freshly ground pepper
  • 1 1/2 tablespoons coconut oil, plus more *if* needed for cooking
  • 1 small bunch mixed rocket and baby spinach leaves, washed
  • 2 limes, halved


  1. Grind mustard seeds to a coarse powder in a spice grinder or mortar and pestle. Combine ground seeds with salt and pepper, and spread mixture out on a plate.
  2. Dredge each piece of tuna in the ground mustard mixture, gently pressing the seeds against the tuna so that they adhere.
  3. Place a large skillet over medium heat. Let stand until the skillet feels hot when you place your palm just above it, about 1 minute. Add 1 tablespoons coconut oil to skillet. Heat oil until it is hot but not smoking, about 1 minute more.
  4. Carefully arrange pieces of tuna in the skillet about 1 inch apart (it is easiest to cook 2 pieces at a time; if you do so, add 1/2 tablespoon oil for second batch). Sear tuna about 1 minute, until it releases easily from skillet and the seeds are deep golden brown. Continue process until the long sides are seared. (The tuna will be very rare in the center. If you want the tuna to be more well done, increase cooking time.)
  5. Serve whole or using a sharp knife, slice the tuna into squares. Arrange on plates with a handful of mixed salad and half a lime.
  6. Serve immediately and enjoy!

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