This Crock-Pot Spaghetti recipe is an easy and delicious way to make classic spaghetti with meat sauce in your slow cooker. Perfect for busy weeknights!
In a skillet over medium heat, brown the ground beef. Drain off any excess grease.
Add the chopped onion and minced garlic to the skillet with the beef. Cook until softened, about 5 minutes.
Transfer the beef mixture to a 6-quart slow cooker. Stir in the crushed tomatoes, beef broth, oregano, basil, and red pepper flakes (if using).
Cover and cook on low for 4 hours or on high for 2-3 hours, or until the sauce is heated through.
About 30 minutes before serving, add the uncooked spaghetti to the slow cooker, pushing it down into the sauce. Cover and continue to cook until the spaghetti is al dente.
Stir in the mozzarella cheese and Parmesan cheese until melted. Serve hot.
Notes
For an even richer flavor, you can add a bay leaf to the sauce while it simmers.