Ingredients

• 2 cups watermelon, peeled, seeded, and diced
• 1 tablespoon sliced onion
• 1 tablespoon diced poblano pepper or 1 teaspoon diced jalapeno pepper
• 1/2 cup diced sweet yellow pepper
• 1 teaspoon chopped garlic
• 3 tablespoons chopped cilantro
• Juice of 2 limes
• 1 teaspoon grated lime zest
• Salt and freshly ground pepper
• 1 tablespoon coriander seeds
• 1 tablespoon fennel seeds
• 2 teaspoons black peppercorns
• 24 ounces tuna (4 pieces, 1-1/2 inches thick)
• 2 teaspoons olive oil

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Instructions

1. To prepare the watermelon salsa, in a mixing bowl, combine all the ingredients and season with salt and pepper.
2. To prepare spice blend, grind all spices in a mini food processor or spice grinder they are powdery. Spread the spice mixture evenly on a large plate.
3. Rinse the tuna fillets and pat dry. Place one side of each piece of tuna into the spice mixture. Shake off excess.
4. In a 10-inch nonstick skillet, heat 1 teaspoon of olive oil over high heat until almost smoking. Carefully place two of the tuna fillets, spiced side down, into the skillet. A spice crust should form within 1 minute. Using kitchen tongs, turn over the tuna, lower the heat to medium, and cook for 2 to 5 minutes to desired doneness. Repeat the process with the remaining tuna fillets. For Watermelon Salsa: