5-Ingredient Slow Cooker One-Pot Spaghetti – Easy Crockpot Dinner with Ground Beef
This 5-Ingredient Slow Cooker One-Pot Spaghetti is the kind of easy weeknight dinner that saves the day when you’re short on time but still want something warm, hearty, and homemade. Ground beef, marinara sauce, broth, spaghetti, and Italian seasoning come together in the slow cooker for a comforting meal with minimal effort and just one main pot to clean.
Unlike traditional spaghetti that requires browning the meat, simmering the sauce, and boiling pasta in separate pots, this version keeps everything simple. The slow cooker handles most of the work while the flavors slowly come together into a rich, saucy dinner the whole family can enjoy.
Why You’ll Love This Recipe
- Only 5 simple ingredients
- Easy one-pot slow cooker dinner
- No separate pot of boiling pasta
- Family-friendly comfort food
- Perfect for busy weeknights
- Budget-friendly meal
- Easy to customize
- Great for leftovers
Ingredients
- 1 pound ground beef, preferably 85–90% lean
- 1 (24-ounce) jar marinara or spaghetti sauce
- 3 cups low-sodium beef broth or water
- 12 ounces spaghetti, broken in half
- 1 teaspoon Italian seasoning or dried oregano and basil blend
How to Make 5-Ingredient Slow Cooker One-Pot Spaghetti
Step 1: Brown the Ground Beef
Heat a skillet over medium-high heat.
Add the ground beef and cook, breaking it apart with a spoon, until it is no longer pink.
Drain any excess fat.
Browning the beef first adds extra flavor, although you can skip this step when you’re especially short on time.
Step 2: Add the Ingredients to the Slow Cooker
Transfer the cooked ground beef to the slow cooker.
Add the marinara sauce, beef broth, and Italian seasoning.
Stir everything together until well combined.
Step 3: Cook the Meat Sauce
Cover the slow cooker and cook on:
- LOW for 3–4 hours
- HIGH for 1½–2 hours
This gives the sauce time to develop a rich, savory flavor.
Step 4: Add the Spaghetti
About 45–60 minutes before serving, stir the sauce.
Break the spaghetti noodles in half and add them directly to the slow cooker.
Press the noodles gently into the sauce so they are mostly submerged.
If the mixture looks too dry, add another ½ cup broth or water.
Step 5: Finish Cooking
Cover and continue cooking on HIGH for 30–45 minutes.
Stir once or twice during cooking to separate the spaghetti and help the noodles cook evenly.
Cook until the pasta is tender but still has some texture.
Avoid overcooking, since the noodles can become soft quickly in a slow cooker.
Step 6: Adjust and Serve
Give everything a good stir once the spaghetti is cooked.
If the sauce is too thick, add a small splash of broth or water.
If it is too thin, leave the lid off for 5–10 minutes to allow some excess liquid to evaporate.
Serve hot with grated Parmesan, mozzarella, or red pepper flakes if desired.
What Makes This Slow Cooker Spaghetti Special?
The beauty of this recipe is how much comfort you can get from such a short ingredient list. The ground beef adds savory richness, marinara provides the tomato base, and the broth gives the spaghetti enough liquid to cook directly in the slow cooker.
As the sauce simmers, the flavors come together while the pasta absorbs some of that rich tomato and beef flavor.
It’s an especially useful recipe for those evenings when you want homemade spaghetti without standing over the stove.
Delicious Variations
Extra-Cheesy Spaghetti
Stir 1–2 cups shredded mozzarella or Italian-blend cheese into the spaghetti during the final 5–10 minutes of cooking.
Cover until the cheese melts into a gooey topping.
Hidden Vegetable Version
Add finely chopped vegetables such as:
- Carrots
- Bell peppers
- Spinach
- Zucchini
They soften into the sauce while the spaghetti cooks.
Turkey or Chicken Spaghetti
Replace the ground beef with:
- Ground turkey
- Ground chicken
Brown the meat before adding it to the slow cooker.
Italian Sausage Spaghetti
For a richer, more robust flavor, replace some of the ground beef with Italian sausage.
A combination of beef and sausage works especially well for a classic Sunday-sauce flavor.
Spicy Spaghetti
Add a pinch of:
- Red pepper flakes
- Crushed chili peppers
- Hot Italian seasoning
for a little heat.
Expert Tips
- Brown the beef first for better flavor and texture.
- Don’t add the spaghetti too early or it may become mushy.
- Make sure the noodles are mostly covered with liquid.
- Stir the pasta once or twice while it cooks.
- Slow cookers vary, so check the pasta early the first time you make this.
- If your slow cooker runs hot, add an extra ½ cup of liquid.
- Add cheese near the end so it melts without becoming overcooked.
Serving Suggestions
This slow cooker spaghetti pairs perfectly with:
- Garlic bread
- Warm baguette
- Green salad
- Steamed broccoli
- Green beans
- Roasted zucchini
- Caesar salad
For a family-style dinner, serve the spaghetti with a bowl of grated Parmesan or shredded mozzarella so everyone can add their favorite topping.
Make-Ahead Tips
You can brown the ground beef the night before and refrigerate it in a covered container.
When you’re ready to cook, add the beef, marinara sauce, broth, and Italian seasoning to the slow cooker.
This makes the morning preparation especially quick.
Storage Instructions
Refrigerator
Allow leftovers to cool and store them in an airtight container in the refrigerator for up to 3–4 days.
Reheating
The spaghetti will thicken as it sits in the refrigerator.
When reheating, add a splash of water or broth and warm gently on the stovetop or in the microwave until heated through.
Freezer
For best texture, freeze the meat sauce separately before adding the pasta. Cook fresh spaghetti when you’re ready to serve.
Frequently Asked Questions
Can I put dry spaghetti directly into the slow cooker?
Yes. Add the dry spaghetti during the final 45–60 minutes of cooking and make sure the noodles are mostly submerged in the liquid.
Do I have to brown the ground beef first?
Browning is recommended for better flavor and texture. If you’re in a hurry, you can skip it, but the finished dish may have a slightly different texture and flavor.
Can I use water instead of beef broth?
Yes. Beef broth adds more flavor, but water works when that’s what you have available.
Why did my spaghetti become mushy?
The pasta may have cooked too long. Slow cookers vary considerably, so start checking the noodles early the first time you prepare the recipe.
Can I add cheese?
Absolutely. Stir shredded mozzarella or Italian-blend cheese into the spaghetti during the final few minutes until melted.
Can I use another type of pasta?
Yes. Short pasta shapes such as penne or rotini can work, although cooking times and liquid requirements may vary.
Final Thoughts
This 5-Ingredient Slow Cooker One-Pot Spaghetti is exactly the kind of dependable dinner that makes busy nights easier. With ground beef, marinara sauce, broth, spaghetti, and Italian seasoning, you can create a hearty meal without juggling multiple pots and pans.
The slow cooker takes care of most of the work, leaving you with tender pasta, savory meat, and plenty of rich tomato sauce in every bite.
It’s simple, affordable, comforting, and easy to customize—making it the kind of weeknight recipe you’ll want to keep coming back to.
