In a 1-1/2 quart baking dish, combine shrimp, tomato, olive oil, garlic cloves, oregano, salt and pepper. Stir until blended. Sprinkle with crumbled feta cheese. Bake 10 to 12 minutes at 450 deg F until shrimp are cooked through. Serve over rice, orzo, or another pasta shape. Sprinkle with chopped parsley.