slow cooker tomato sauce with grass fed beef, a bowl of parmesan cheese and glass of water

When you want a super flavorful made from scratch tomato sauce, my Slow Cooker Bolognese is the perfect recipe. The sauce cooks low and slow and turns your fresh juicy tomatoes into the most amazing sauce that is excellent spooned over pasta.

This is the perfect recipe to use up your garden tomatoes. You can also use store-bought tomatoes, just make sure to buy ones that are extremely ripe and flavorful. I would recommend buying the tomatoes that are still on the vine.

Using An Abundance of Garden Tomatoes

My friend gave me a big sack of garden tomatoes from her harvest. Now, I know what you’re probably thinking I’m absolutely, 100% crazy for wanting to turn those into a sauce when I should be thickly slicing and devouring them with nothing more than a sprinkle of coarse salt and fresh ground pepper. slow cooker tomato sauce with grass fed beef in a white bowl, bread on a white plate and a salt and pepper shaker

The problem is when I had a garden of my own, I would plant so many tomato plants I didn’t know what to do with all the gorgeous fruit as they weighed down the branches come late September. I would bottle them. Some would be pureed or diced and frozen to add to be added later to soups and stews. And pounds would be roasted and pureed into the most delicious soup imaginable.

But I’d still be left with dozens of tomatoes, so I got into the habit of cutting them up and popping them in the slow cooker to make pasta sauce. The long, slow cooking turns the ripest, juiciest tomatoes into a rich, sweet sauce that rivals any other.

slow cooker tomato sauce ingredients- tomatoes, ground beef, garlic, tomato paste, onions, celery, carrots

Variations on Slow Cooker Bolognese

You can certainly make this pasta sauce vegetarian by adding more diced veggies and tomatoes, or substituting finely chopped mushrooms for the beef.

For this I’ve used grass fed ground beef. It has big meat flavor and becomes super tender during the several hours of cooking. You could also use ground turkey or ground bison.

From there, the world is your oyster, as they say. It’s spectacular spooned between layers of lasagna noodles and cheese, tossed with spaghetti or fettucine, zucchini noodles, or with a piece of thick-cut buttered bread. (My favorite way when I was a kid.)slow cooker tomato sauce with grass fed beef over spaghetti in a white bowl



Slow Cooker Bolognese

A super flavorful Bolognese sauce that is cooked low and slow in your slow cooker. This is a wonderful made from scratch tomato sauce and is the perfect recipe to use up your garden tomatoes.

  • Author: Andrea Howe
  • Prep Time: 20 mins
  • Cook Time: 3 hours
  • Total Time: 3 hours 20 mins
  • Yield: 6-8 1x
  • Category: Main
  • Cuisine: Italian


  • 1 Tablespoon olive oil or butter
  • 1 large onion, diced
  • 1 carrot, peeled and diced
  • 1 celery stalk, diced
  • 3 cloves garlic, minced
  • 1 pound grass fed ground beef
  • Two (6-ounce) cans tomato paste
  • 810 cups diced tomatoes, about 12 medium tomatoes
  • Salt and pepper, to taste
  • Hot cooked pasta, for serving
  • Shaved parmesan cheese, for garnish


  1. Have a 4-6 quart slow cooker ready to go.
  2. Heat the oil or butter in a large skillet. Add the onion, carrot, and celery. Cook, stirring often, until the vegetables start to soften.
  3. Add the garlic and cook for 30-60 seconds.
  4. Next add the ground beef, using a wooden spoon to break it up as it cooks.
  5. Once it has browned, remove from heat and transfer everything to the slow cooker.
  6. Stir in the tomato paste, diced tomatoes, and 1/2 teaspoon salt.
  7. Set slow cooker to HIGH for 3-4 hours, or LOW for 8-10 hours.
  8. Before serving, taste and add more salt if needed, and season with black pepper.
  9. Serve over hot, cooked pasta and garnish with cheese.

Keywords: slow cooker fresh tomato sauce, homemade spaghetti sauce from fresh tomatoes, slow cooker spaghetti sauce from scratch



Susie Weinrich

I have not made bolognese with fresh tomatoes, I can’t wait to try it! I have also been wanting to use my Instant Pot on Slow Cooker mode.


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