Cook orzo according to package directions, omitting salt and fat; drain. Set aside, and keep warm.
Peel and devein shrimp; set aside.
Coat a small nonstick skillet with cooking spray; add oil. Place over medium-high heat until hot. Add garlic, and saute 30 seconds. Add tomato, and saute 2 minutes. Reduce heat to medium. Add shrimp and wine; saute 2 minutes. Add basil, oregano, and pepper; saute 2 minutes or until shrimp turns pink.
Combine shrimp mixture and orzo, stirring well. Spoon mixture evenly into 2 (2-cup) casseroles coated with cooking spray. Sprinkle evenly with feta cheese. Bake, uncovered, at 500° for 5 minutes or until cheese melts.