In a large bowl, combine the ricotta cheese, Italian seasoning, garlic powder, salt, and black pepper. Mix well.

In the crockpot, layer half of the uncooked ziti pasta, followed by half of the marinara sauce, half of the ricotta mixture, and half of the mozzarella cheese.

Repeat the layers with the remaining ingredients.

Top with grated parmesan cheese.

Cover and cook on low for 4 hours or until the pasta is tender and the cheese is melted.

Once cooked, let it sit for 10 minutes before serving.