This simple one dish recipe uses orzo pasta, tomatoes, ground beef, and feta cheese for a delicious greek inspired meal. We always use fresh rosemary in this, because dried rosemary is just a bunch of little needles. If you can't find fresh rosemary, just omit it; this recipe will still have plenty of flavor. You can use any other type of pasta you'd like, even elbow macaroni. Just make sure you keep testing the pasta as the recipe cooks to make sure it doesn't overcook.