In A Large Skillet Over Medium Heat, Warm Oil And Add Chicken; Cook Until Slightly Brown. Add Onion And Garlic To Cook For About 5 Minutes Or Until Garlic Is Golden And Onions Are Translucent. Add Tomatoes, Broccoli, Salt, Pepper And Oregano; Stir Well And Bring To A Boil. Cover And Turn Down Heat To Simmer For About 10 Minutes. Meanwhile, Bring A Large Pot Of Lightly Salted Water To A Boil. Add Pasta And Cook For 8 To 10 Minutes Or Until Tender; Drain And Add Back Into Pot. Pour Chicken Sauce Into Pot And Mix Well. Add Basil And Toss Well; Top With Parmesan Cheese. Serve.