Cook orzo in lightly salted boiling water according to package directions. When al dente, drain orzo through a fine mesh strainer.
Pour olive oil into a large skillet placed over medium heat. Add garlic and cook for about 1 minutes, until fragrant. Add shrimp to the pan in an even layer and season with thyme, salt, and pepper. When shrimp start turning pink (about 2 minutes), flip and cook for another minute or so on the other side, until opaque.
Add tomatoes to the skillet and cook until heated through, about 30 seconds.
In a large serving bowl or in small individual bowls, toss together orzo, shrimp and tomatoes, and feta cheese. Top with chopped parsley. Drizzle lemon juice over the top and top with more salt and pepper, if desired.