Cook the ground beef and sausage over medium heat until well browned.
Remove the beef and sausage from the skillet and set aside.
Add the onions to the skillet and cook until translucent.
Stir in the fresh garlic and cook until fragrant.
Place the beef and sausage back in the skillet.
Add the wine and let it reduce by half.
Add the red pepper flakes, oregano, crushed tomatoes, sugar, water, salt, and pepper.
Reduce the heat to low and cook for 1 hour or until the beef and sausage are fork tender.
In a large bowl, combine the ricotta cheese, parsley, granulated garlic, egg, parmesan cheese, mozzarella cheese, salt, and pepper.
Add about 1 cup of the meat sauce to a casserole dish.
Fill the cooked shells with 1 tbsp of meat sauce and 1 tbsp of the ricotta filling.
Top the shells with the remaining sauce and sprinkle some parmesan cheese on top.
Bake in a preheated oven for 20 minutes at 350 degrees F.
Sprinkle some fresh mozzarella cheese on top, oregano, olive oil and then place it back in the oven for an additional 10 minutes.
Serve immediately and enjoy!