Brown ground beef in a skillet over medium high heat until no longer pink. Drain excess grease. Stir in butter, peppers & onions and cook until softened. Stir in garlic and cook for 1 minute.
Add in 16 oz of pasta (reserve 1 cup for later in recipe), water, Italian seasoning, sugar, and salt & pepper. Stir and bring to a simmer. Turn off heat.
In medium bowl mix together 1/2 of the mozzarella cheese, cottage cheese, and parsley.
In bottom & up the sides of a 9 x 13 baking dish spread 1/2 cup of the reserved pasta sauce evenly. Place a single layer of frozen ravioli on top of the sauce in baking dish.
Place 1/2 of the meat mixture over the ravioli and spread evenly. Top with 1/2 of the mozzarella mixture and spread.
Top with another layer of ravioli. Spread remaining meat mixture on top of ravioli. Dollop with remaining cheese mixture.
Top with another layer of ravioli. Add 1/4 cup of water to the remaining 1/2 cup of reserved pasta sauce and pour over the ravioli evenly.
Top with 8oz shredded mozzarella cheese evenly.
Bake in preheated oven for 30-40 minutes until cheese has melted and is golden brown. Let sit for 8 minutes. Garnish with fresh parsley and serve.