Step 1:In medium saucepan, combine 1/2 cup olive oil with parsley, red peppers, scallions, 2 tbsp. lemon juice, capers, oregano, and salt. Simmer over low heat 5 minutes, stirring occasionally, to blend flavors. Remove from heat and set aside.

Step 2:Place tuna in a single layer in a glass baking dish. Drizzle remaining 1/4 c up olive oil and 2 tbsp. lemon juice over fish. Season with pepper. Turn to coat both sides. Cover with plastic wrap and marinate at room temperature 30 minutes.

Step 3:Prepare a hot fire. Place fish on an oiled grill set 4 to 6 inches from coal s. Reheat sauce by placing saucepan on side of grill. Grill tuna, turning once, until opaque throughout but still moist, about 8 to 10 minutes. Transfer to a serving plate and spoon sauce over each steak.

Step 1:Cut steak into serving size portions. Place half the steak in Crockpot. Arrange green peppers on steak. Place remaining steak on top.

Step 2:Mix remaining ingredients and pour over meat. cover and cook on Low setting for 8 to 10 hours, or high for 4 to 5 hours.