01 - In a large mixing bowl, combine ricotta cheese, dried Italian seasoning, garlic powder, salt, and pepper. Mix thoroughly until the ingredients are fully blended.
02 - Spread a thin, even layer of marinara sauce across the bottom of the crockpot.
03 - Arrange half of the frozen cheese ravioli over the sauce. Spoon half of the ricotta mixture over the ravioli and gently spread. Sprinkle one third of the shredded mozzarella evenly on top.
04 - Repeat with the rest of the ravioli and the ricotta blend. Pour the remaining marinara sauce evenly over the top, then finish with the remaining mozzarella and all of the grated Parmesan cheese.
05 - Cover the crockpot with its lid and cook on low heat for 4 hours, until the cheese is fully melted and bubbling.