First, brown a pound of ground beef or ground turkey, either is fine. Drain and return to the skillet.
Pour a 24 oz. jar of your favorite Pasta Sauce into the meat. Add the seasonings and stir. Cover with a lid and simmer on low while you prepare the remaining ingredients.
Shred 1 cup of fresh parmesan cheese and 1 cup of mozzarella. You can buy the shredded mozzarella in a bag but I recommend that you shred the fresh parmesan. Freshly shredded parmesan has a better flavor.
Add the Ricotta and shredded parmesan and mozzarella cheeses into a medium size bowl. Stir together until the three cheeses are well blended.
You are reserving one cup of shredded mozzarella cheese to melt on top at the end of the cooking time.
Now you are going to spoon the three cheese blend into a large resealable plastic bag such as a Ziploc. Close the end being sure to remove the air and snip off one corner so you can pipe the cheese into the shells.
Spoon just enough of your hot meat sauce mixture into the bottom Crockpot to cover the bottom. This will be a thin layer.
We are going to make three layers of savory meat sauce with two layers of cheese stuffed manicotti shells. It should begin and end with the meat sauce.
Open one 8 oz. package of Manicotti shells. Do not boil the shells! They will soften during the cooking process in the Crockpot.
Pipe the cheese blend into each shell. Place the stuffed shell into the Crockpot on top of the first layer of meat sauce.
Now spoon more of the meat sauce mixture on top of those cheesy stuffed manicotti shells.
Add one more layer of stuffed manicotti shells and top it with the remaining meat sauce. Cover with the lid.
Turn your Slow Cooker to the high setting. Cook on High for about 2 hours or until hot and bubbly and shells are fork tender.
About the last 20 minutes of cook time, you will sprinkle that other 1 Cup of shredded Mozzarella on top, replace the lid and watch it melt!
Serve and enjoy!