In a pot of boiling water, cook the spaghetti according to package directions. While the pasta cooks, prepare the sauce.
In a nonstick skillet, add the oil, and saute the dried oregano and garlic for one minute, until the garlic is tender. Add the tomatoes, green onions, 2 tablespoons parsley, basil and lemon juice. Cook and stir for two minutes, until everything is heated through. Remove from heat.
Drain the cooked pasta. Add the pasta to the skillet with the tomato mixture. Add ¾ cup crumbled feta cheese, salt and pepper, and toss to combine. Sprinkle the remaining feta cheese and parsley on the top of the dish, and serve immediately.
