Slow Cooker Tomato Sauce Recipe

Name: Slow Cooker Tomato Sauce
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 teaspoon olive oil; 2 onions, chopped; 5 garlic cloves, minced; 2 carrots, finely chopped; 3 celery ribs, chopped; 1 green pepper, chopped; 1 red pepper, chopped; 3 (28 ounce) cans tomatoes, crushed; 1 (15 ounce) can tomato sauce; 4 tablespoons tomato paste; 1 (10 ounce) can tomato soup; 1/4 cup chopped fresh basil leaf; 2 tablespoons chopped fresh parsley; 1/2 teaspoon dried oregano leaves; 1/2 teaspoon thyme; 1/2 teaspoon salt; 1/2 teaspoon pepper; 1/4 teaspoon cayenne; 1 dash red pepper flakes

Servings: persons

1 teaspoon olive oil
2 onions, chopped
5 garlic cloves, minced
2 carrots, finely chopped
3 celery ribs, chopped
1 green pepper, chopped
1 red pepper, chopped
3 (28 ounce) cans tomatoes, crushed
1 (15 ounce) can tomato sauce
4 tablespoons tomato paste
1 (10 ounce) can tomato soup
1/4 cup chopped fresh basil leaf
2 tablespoons chopped fresh parsley
1/2 teaspoon dried oregano leaves
1/2 teaspoon thyme
1/2 teaspoon salt
1/2 teaspoon pepper
1/4 teaspoon cayenne
1 dash red pepper flakes

1
Heat oil in skillet; add onions,garlic, celery peppers and carrots.
2
Saute on high until transparent.
3
Transfer to slow cooker.
4
Add remaining ingredients.
5
Stir to blend together.
6
Cook on low for 9 hours or on high for 6 hours.
7
About an hour before serving time, check and thin with water if necessary.
8
I love a thick sauce.
9
Set the Slow cooker on Low and let is cook overnight.
10
Tip: Use your processor on the pulse mode to chop your vegetables.
11
I always try to make it in the summer and add my fresh herbs by the handfull.

307

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 19 ingredients. The key ingredients include: 1 teaspoon olive oil, 2 onions, chopped, 5 garlic cloves, minced, 2 carrots, finely chopped, and more.

Yes, Slow Cooker Tomato Sauce falls under the Soups & Stews category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

Slow Cooker Tomato Sauce

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions