This Slow Cooker Baked Ziti is actually made completely in the crockpot -- even the pasta! It is so much easier than the traditional version but packs all of the same flavor!
In a large skillet over medium-high heat, cook the beef and onion until browned, about 5 minutes.
Stir in the garlic, salt, basil, and parsley and cook for 1 minute.
Transfer the beef mixture to a 5- to 6-quart slow cooker. Add the tomatoes, sauce, and broth. Stir well.
Cover the slow cooker and cook on low for 6 hours or on high for 3 hours.
Turn the slow cooker temperature to high. Add the uncooked pasta and stir until combined. Cover and continue cooking for 15 to 30 minutes, until al dente, checking and stirring at the 15-minute mark.
Remove from the heat and sprinkle with the mozzarella. Cover and let sit for 3 to 5 minutes until the mozzarella has melted.