from foodnetwork.com: http://www.foodnetwork.com/recipes/bobby-flay/toasted-fennel-crusted-tuna-saffron-red-pepper-sauce-spring-vegetable-couscous-recipe.html
Heat medium saute pan over medium heat. Add onions & garlic and cook until soft. Add the red peppers, vinegar, water & saffron. Bring to a simmer. Cook for 15-20 mins. Place in mini food processor and blend until smooth. Season with salt & pepper.
Brush both sides of tuna with EVOO and season with salt & pepper. Heat grill pan over med-high heat. Cook tuna 2-3 mins per side.
Spoon sauce onto plates. Place tuna on top of sauce.
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