Preheat the oven to 350. Season the tuna portions with salt and pepper on both sides.
In a medium sized sauté pan, over medium high heat, add ¼ c olive oil, and let it get hot. Carefully place the tuna into the pan. Saute for 1-2 min, and flip. Place 3-4 slices of fig over the cooked side, and dust each portion with 1 ½ teaspoons of thyme leaves. Place in the oven for a few minutes, until the tuna is medium rare, and the figs have gotten warm.
Meanwhile, combine the maple syrup and mustard in a small saucepan, and heat over a low flame. Turn off heat.
Place bitter greens in a big bowl. Dress with olive oil and lemon juice, salt and pepper, until well dressed and delicious. Put a pile of greens on each plate, and place a portion of tuna on top. Drizzle the tuna with the mustard maple sauce. Enjoy!!