Start by browning your ground beef or Italian sausage in a skillet over medium heat. Break it up as it cooks, and once it's browned through, drain the excess fat. This helps keep the dish flavorful but not greasy.
Add a generous spoonful of marinara sauce to the bottom of the crockpot. This helps prevent the pasta from sticking and starts the layering process with flavor.
Now it’s time to layer like lasagna. Add a layer of uncooked ziti pasta, followed by spoonfuls of ricotta cheese, cooked meat, and a little more marinara. Repeat these layers until all ingredients are used up.
Sprinkle the shredded mozzarella cheese over the top, followed by the grated Parmesan. This will melt into a golden, bubbly finish that you’ll love scooping into.
Cover the crockpot and cook on low for 4 to 6 hours. You'll know it’s ready when the pasta is tender and the cheese is fully melted.