This Slow-cooker spaghetti Bolognese is meaty, rich, and full of delicious flavors!

Slow Cooker Spaghetti and Bolognese Sauce

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homemade spaghetti meat sauce

Slow Cooker Spaghetti Bolognese – THE BEST!!!

Stephanie Savoie
This slow-cooker spaghetti sauce is meaty, rich, and full of delicious flavors! Use the leftover sauce to make the best Lasagna!
Prep Time 20 minutes
Cook Time 8 hours
Total Time 8 hours 20 minutes
Course dinner, dinners, Main Course
Cuisine Italian
Servings 8 -10


  • 2 lbs ground beef
  • 1 bell pepper, chopped
  • 1 large onion, chopped
  • 6 cloves garlic, minced and divided
  • 1 cup celery, chopped
  • 1 can sliced mushrooms (you can also use fresh)
  • 1 can tomato paste (369 ml)
  • 1 can tomato soup (248 ml)
  • 1 can tomato sauce (398 ml)
  • 1 can whole tomatoes with herbes and spices, mashed
  • 2 tsp dry oregano
  • 2 ½ tsp dry thyme
  • 2 ½ tsp dry basil
  • 2 ½ tsp dry marjoram
  • 1 ½ tbsp Italian Seasonings
  • 6 bay leaves (remove after cooking)
  • ½ tsp red pepper flakes (optional)
  • ½ tsp salt
  • ¼ tsp black pepper or more to taste


  • Cook your ground beef in a large skillet, over medium-high heat, with half of the onions and half of the minced garlic. Season with salt and pepper to taste and cook until ground beef is browned.
  • Add ground beef to the slow cooker followed by the rest of the ingredients.
    Mix well.
  • Cook on low for 7- 8 hrs. (See Notes)
    Serve with parmesan cheese, garlic bread, and/or a side salad if desired.


  1. This sauce is best cooked on low as it needs time to simmer and develop flavors (Slow and steady wins the race!).   So, I really don’t recommend cooking this on high, as the flavors won’t get the chance to ‘Marry’ and it might taste bitter.  The longer it cooks, the better it will taste.
  2. If you want to add sugar you can but It’s not necessary.  I don’t find this sauce to be too acidic as the canned tomato sauce and soup already have some sugar in them.   I suggest giving it a taste test at the end to see if you need to add any sugar and only add a little at a time. 
  3. You can switch out the vegetables if you wish.  Carrots also work really well with this sauce.
  4. If you don’t like a super meaty sauce then you can add less ground beef.
  5. It may look extremely thick at first but it will get a lot thinner as it cooks.
  6. One of my favorite recipes to make for dinner the next day, with this sauce, is my slow cooker lasagna.  You can find the recipe here!  Or watch the video here!
  7. This recipe freezes extremely well.  I often make a double batch and will freeze it to have some quick and easy dinners in the following months.
Keyword crockpot recipe, ground beef, homemade, meat sauce, pasta, slow cooker recipe


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