SUPER EASY! I used 1 lb of ground beef, 3 cans of spaghetti sauce, mozzarella cheese, pizza blend cheese, and Buitoni tortellini (the pasta was filled with chicken, roasted garlic, ricotta and Parmesan cheese). Cook the ground beef as you normally do for spaghetti. Once cooked begin alternating layers of meat, sauce, pasta, and mozzarella cheese. End with pizza blend cheese. I cooked it for 2 hours on low and 1 hour on high.
Enjoy