01 -
Preheat oven to 190°C. Grease a 33 x 23 cm baking dish with nonstick spray or a small amount of olive oil.
02 -
In a large skillet over medium heat, cook ground beef and onion until beef is browned and onion is softened, about 5–7 minutes. Drain excess fat. Add minced garlic and sauté for 1 minute. Stir in marinara sauce and simmer for 5 minutes. Remove from heat.
03 -
In a medium bowl, blend ricotta cheese, sour cream, cream cheese, egg, parsley, salt, and black pepper until smooth and creamy.
04 -
Spread a thin layer of meat sauce in the prepared baking dish. Arrange half of the ravioli in a single layer over the sauce. Evenly spread half of the ricotta mixture over the ravioli, then half of the remaining meat sauce. Sprinkle with 100 g of mozzarella cheese. Repeat with remaining ravioli, ricotta mixture, meat sauce, and finish with remaining mozzarella and all Parmesan cheese.
05 -
Cover dish with aluminum foil and bake for 30 minutes. Remove foil and bake for 10–15 more minutes, or until cheese is thoroughly melted and bubbling.
06 -
Allow to cool for 5–10 minutes before serving. Garnish with additional parsley if desired.