Lemon-pepper Tuna


4 Tuna steaks; 3/4 inch thick 1/2 ts Salt 1/2 ts Coarsely ground black pepper 1 tb Oil 1/2 c Chicken broth 1 tb Lemon juice 1 tb Country-style dijon mustard 1 tb Finely chopped fresh chives Sprinkle both sides of tuna with salt and pepper. Heat oil in nonstick skillet over medium-high heat. Add tuna; cook until browned on both sides and just slightly pink in center, about 8 minutes. Transfer tuna to platter. To same skillet, add chicken broth and lemon juice. Heat to boiling. Remove from heat. Swirl in mustard and chives. Spoon sauce over tuna. Serve immediately.