Making Slow Cooker Baked Ziti is straightforward if you follow these easy steps:

1. Cook the Pasta: In a large pot, boil the ziti according to package instructions until al dente. Drain and set aside.
2. Mix the Cheese Filling: In a bowl, combine the ricotta cheese, Italian seasoning, garlic powder, salt, and pepper. Mix until well combined.
3. Layer the Ingredients: Begin by spreading a layer of marinara sauce at the bottom of the slow cooker. Add half of the cooked ziti on top of the sauce.
4. Add Cheese Mixture: Spoon half of the ricotta mixture over the ziti, followed by a layer of mozzarella cheese.
5. Repeat the Layers: Add the remaining ziti, another layer of marinara sauce, the rest of the ricotta mixture, and finish with the remaining mozzarella cheese and Parmesan cheese.
6. Slow Cook: Cover the slow cooker and cook on low for 4-6 hours or on high for 2-3 hours.
7. Check for Doneness: Ensure the cheese is melted and bubbly, and the ziti is heated through. You can check by inserting a fork into the center.
8. Serve: Once cooked, allow to cool for a few minutes before serving.

These straightforward instructions will guide you in creating this incredible dish without breaking a sweat.