A make at home version of Olive Garden's Five cheese Baked Ziti, but not quite as good... probably better for you!
1 26 oz jar spaghetti sauce
1 16 oz ricotta cheese
1 8 oz pkg shredded mozzarella cheese
1 tsp oregano
1/2 tsp garlic powder
1/4 tsp black pepper
1 box ziti noodles (I used penne, couldn't find ziti)
1 Tbs Parmesan cheese
Cook ziti noodles according to box directions. Meanwhile, set crock pot on low. Combine 2 cups spaghetti sauce, ricotta, 1/2 package Mozzarella cheese, egg, oregano, garlic powder, and pepper right in the crock pot. When ziti has finished cooking, drain and combine with mixture in crock pot. Use remaining sauce on top and sprinkle with Parmesan and remaining Mozzarella cheese. Cover with lid and cook on low for about 4 hours.
I have a big crock pot, and have found that things cook faster in it than in the old smaller round crock pots. So I cooked it for 2.5 hours on low and it was getting crusty on the edges. I don't know if this is just my crock pot or not, but a warning, just in case.