Slow Cooker Spaghetti Supper

 

Slow Cooker Spaghetti Supper

This Slow Cooker Spaghetti Supper is a comforting, family-friendly dinner that brings together tender spaghetti, hearty ground beef, rich tomato sauce, and plenty of melted cheese. Instead of spending the evening standing over the stove, the slow cooker does most of the work for you.

It’s an easy meal for busy weeknights, Sunday dinners, or whenever you want a warm bowl of classic spaghetti without a lot of fuss. The finished pasta is hearty, cheesy, and full of familiar Italian-inspired flavor.

Ingredients

• 1 pound ground beef
• 1 small onion, finely chopped
• 1 jar (24 ounces) marinara or spaghetti sauce
• 1 can (14.5 ounces) diced tomatoes, undrained
• 2 cups beef broth
• 12 ounces spaghetti, broken in half
• 1½ cups shredded mozzarella cheese
• ½ cup grated Parmesan cheese
• 1 teaspoon Italian seasoning
• ½ teaspoon garlic powder
• ½ teaspoon salt
• ¼ teaspoon black pepper

How to Make Slow Cooker Spaghetti Supper

1. Brown the Beef

Heat a large skillet over medium heat. Add the ground beef and chopped onion.

Cook until the beef is browned and no longer pink, breaking it apart as it cooks. Drain any excess grease.

2. Build the Sauce

Transfer the cooked beef and onion to the slow cooker.

Add the marinara sauce, diced tomatoes, beef broth, Italian seasoning, garlic powder, salt, and black pepper. Stir until everything is well combined.

3. Add the Spaghetti

Break the spaghetti in half and add it to the slow cooker.

Gently press the pasta down into the sauce as much as possible. Make sure the spaghetti is surrounded by sauce and liquid so it cooks evenly.

4. Cook the Pasta

Cover and cook on HIGH for about 30–45 minutes, stirring gently once or twice.

Start checking the spaghetti around 30 minutes. The pasta should be tender but not mushy.

Slow cookers vary, so avoid leaving the pasta cooking much longer than necessary.

5. Add the Cheese

Once the spaghetti is tender, sprinkle the mozzarella and Parmesan evenly over the top.

Cover again and cook for another 10–15 minutes, or until the cheese is melted and bubbly.

6. Serve

Turn off the slow cooker and let the spaghetti rest for about 5 minutes.

Spoon the cheesy spaghetti into bowls and serve hot.

Tips for the Best Slow Cooker Spaghetti

Brown the beef first. This gives the meat better texture and flavor while also allowing you to drain excess grease.

Don’t add the spaghetti too early. Pasta cooks much faster than the meat sauce, so adding it during the final cooking stage helps prevent mushy noodles.

Stir gently. Breaking up the pasta too much can make the finished spaghetti less appealing.

Keep an eye on the pasta. Cooking times vary between slow cookers, so begin checking early.

Easy Variations

You can replace the ground beef with Italian sausage for a richer flavor.

For a meatless version, leave out the beef and add sliced mushrooms, zucchini, or bell peppers.

For extra cheesiness, add a little provolone or an Italian cheese blend along with the mozzarella.

You can also use whole-wheat spaghetti or another pasta shape, although cooking time may vary.

What to Serve With Slow Cooker Spaghetti

This spaghetti supper pairs perfectly with garlic bread, toasted Italian bread, Caesar salad, steamed broccoli, or a simple green salad.

A little extra Parmesan sprinkled over each serving makes an especially nice finishing touch.

How to Store Leftovers

Allow leftover spaghetti to cool before transferring it to airtight containers.

Refrigerate for up to 3–4 days.

Reheat individual portions in the microwave, adding a small splash of water or marinara sauce if the pasta seems dry.

You can also freeze the cooked spaghetti in freezer-safe containers for up to 2–3 months. Thaw overnight in the refrigerator before reheating.

Frequently Asked Questions

Can I put uncooked spaghetti directly into the slow cooker?

Yes. For this recipe, the spaghetti is added during the final cooking stage so it can cook directly in the sauce and broth.

Can I use ground turkey instead of beef?

Yes. Ground turkey can replace the beef. Cook it thoroughly before adding it to the slow cooker.

Can I make the sauce ahead of time?

Absolutely. The meat sauce can be prepared ahead and refrigerated. When you’re ready to eat, warm the sauce in the slow cooker before adding the uncooked spaghetti.

Why did my spaghetti become mushy?

Pasta can become soft quickly in a slow cooker. Start checking it early and turn off the slow cooker as soon as the spaghetti reaches the desired texture.

Final Thoughts

This Slow Cooker Spaghetti Supper is the kind of comforting family meal that makes busy evenings easier. Hearty ground beef, rich tomato sauce, tender spaghetti, and melted cheese come together for a warm and satisfying dinner with minimal hands-on cooking.

Serve it with garlic bread and a simple salad, and you have an easy homemade supper the whole family can enjoy.