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Slow Cooked Spaghetti Sauce

Simmer this easy Slow Cooked Spaghetti Sauce recipe all day and you’ll have supper on the table in no time flat.

Slow Cooked Spaghetti Sauce

Easy Slow Cooked Spaghetti Sauce Recipe

Slow cooking is my absolute favorite way to make spaghetti sauce. As you know, pasta in any form and particular spaghetti makes a tasty quick and budget friendly meal any day of the week. When it comes to quick meals slow cookers often get overlooked.  It sounds like a bit of an oxymoron, I know. However, slow cooking really does make meal time easier and it’s such a simple way to get that all day flavor into your meal. It’s a valuable energy saver, too.


How to Make the Best Slow Cooked Spaghetti Sauce Recipe

Cook this recipe for full flavored crockpot spaghetti sauce supper is ready for you when you’re ready to eat. Add a wedge salad and homemade garlic bread to round out your Italian night at home.

  • Ingredients you’ll need to make slow cooked spaghetti sauce: Lean ground beef, Italian sausage, diced onion, minced garlic, salt, red pepper flakes, jarred marinara sauce, Italian seasoned tomatoes, tomato sauce and tomato paste, cooked spaghetti for serving and chopped Italian parsley for garnishing. Grated Parmesan cheese to sprinkle on top, if desired.
  • You can make this recipe for slow cooked spaghetti sauce using different kinds of meat. For example, you could use all ground beef or all Italian sausage. You can also use ground turkey or chicken in the same amount.
  • What does brown sugar do? While I know it may seem unusual, don’t shy away from the brown sugar.  It neutralizes the acidic taste of the tomatoes and lends a richness to the sauce that makes it so delicious. You can omit it, if that’s your preference.
  •  Another flavor addition you can make it to toss in 3/4 cup of pepperoni minis 1-2 hours before the sauce is finished cooking. Kids always love a surprise ingredient.
  • This recipe can be easily  doubled depending on the amount you need. I find it helpful to make large batches specifically for freezing for later meals.
  • To freeze, cool completely then place into a freezer safe Ziploc bag or container. If using a bag, flatten to make it easier to store. Divide into desired size portions depending on your family size, and it’s ready for a supper in a snap.
  • Store leftover spaghetti sauce in an airtight container in the refrigerator for up to 5 days or freeze for up to 2 months.
  • Reheat spaghetti sauce in a saucepan on the stovetop over medium heat.
Slow Cooker Spaghetti Sauce with Parmesan cheese

More Slow Cooker Recipes to Make

Slow cooking is forever a go-to technique in my kitchen even though Instant Pots have become super popular for fast pressure cooking.  Checkout these recipes you may enjoy trying:

Southern style Slow Cooked Spaghetti Sauce

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Slow Cooked Spaghetti Sauce

Prep Time20 minutes
Cook Time6 hours
Total Time6 hours 20 minutes
Course: Main Course, Sauce
Cuisine: American, Italian Inspired
Keyword: slow-cooked-spaghetti-sauce, spaghetti-sauce-recipes
Servings: 8 servings
Calories: 343kcal
Author: Melissa Sperka


  • 2 1/2 lb extra lean ground beef
  • 8 oz sweet or spicy Italian sausage
  • 1 large sweet onion finely diced
  • olive oil
  • 4 cloves garlic finely minced
  • 1 1/2 Tbsp dry Italian seasoning
  • 1/2 tsp crushed red pepper flakes
  • 1/2-1 Tbsp coarse sea salt [more or less to your taste]
  • 1/2 tsp freshly ground black pepper
  • 1 24 oz jar marinara sauce [i.e.Bertolli Five Cheese]
  • 2 8 oz cans basil garlic & oregano tomato sauce
  • 1 14.5 oz can basil garlic & oregano diced tomatoes
  • 1 6 oz can basil garlic & oregano tomato paste
  • 3-4 Tbsp brown sugar adjust to taste
  • 1/4 cup chopped fresh basil
  • 1-2 16 oz packages thin spaghetti cooked to al dente (adjust amount based on servings needed)


  • On the stove top in a large skillet, over medium-high heat, brown ground beef, Italian sausage and diced onion in a couple of tablespoons of olive oil. Cook until no pink remains..
  • Drain any excess fat from the pan, then add minced garlic, dried Italian seasoning, red pepper flakes, sea salt and black pepper.
  • Meanwhile, pour all of the remaining ingredients: marinara sauce, tomato sauce, tomatoes, tomato paste, and brown sugar into a 6 quart slow cooker.
  • Add cooked ground beef, Italian sausage, onion and seasonings to the slow cooker and give it a good stir to blend the ingredients together.
  • Place the lid firmly on top, and set the slow cooker on low. Cook for 6-8 hours.
  • Just before serving mix in 1/4 cup of chopped fresh basil. Taste and adjust the seasonings, if needed.
  • Serve over hot spaghetti.


Don’t shy away from the brown sugar. It neutralizes the acidic taste of the tomatoes and lends a richness to the sauce that makes it so delicious! If you’d like to change it up a little, toss in 3/4 cup of pepperoni minis 2 hours before the sauce is finished cooking. Kids always love a surprise ingredient!


Serving: 1serving | Calories: 343kcal | Carbohydrates: 12g | Protein: 36g | Fat: 16g | Saturated Fat: 6g | Trans Fat: 1g | Cholesterol: 109mg | Sodium: 914mg | Potassium: 845mg | Fiber: 1g | Sugar: 9g | Vitamin A: 403IU | Vitamin C: 8mg | Calcium: 42mg | Iron: 5mg
Tried this recipe?Mention @melissassk or tag #melissassk!


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