Make orzo according to package directions (takes about 6 minutes after water boils).
Meanwhile, in large non-stick skillet, melt butter over high heat. Add shrimp, salt, pepper, and dried thyme. Cook 3-5 minutes, stirring occasionally, or until shrimp just turn pink.
Add tomatoes and cook about 30 seconds, stirring.
Remove skillet from heat. Drain orzo and it and feta to shrimp mixture. Toss to mix. Top with fresh garnish (e.g. parsely) and serve.