Artichoke & Spinach Dip Restaurant Style Author: Suzy Prep time: 15 mins Cook time: 30 mins Total time: 45 mins Serves: 12 Ingredients 1 pound dry ziti pasta 1 onion, chopped 1 pound lean ground beef 2 (26 ounce) jars spaghetti sauce 6 ounces provolone cheese, sliced 1 1/2 cups sour cream 6 ounces mozzarella