Skip to content
Free Trial
  1. Home
  2. Blog
  3. Recipes
  4. Pescatarian

Tomato & Celery Pasta Sauce

  • Ready in 40m
  • 3.1 g net carbs
  • 84 kcal
  • Serves 8
Jump to recipe ↓

This post may contain affiliate links, see our disclaimer.

Tomato & Celery Pasta Sauce (keto, low-carb, vegetarian)

I've been making this sauce for years because it's so easy and adds an amazing flavor to any dishes, not just pasta! I like to serve mine with meatballs and vegetable pasta alternatives like zucchini noodles.

Just like this Baked Feta Pasta Sauce, it's so versatile, plus it's also dairy-free! If you're planning to use it as pasta sauce, simply heat up and serve with your favorite low-carb pasta options such as zucchini noodles, palmini noodles, or shirataki noodles.

This sauce can also be used as a base for casseroles, meatballs and you can even use it to make bolognese-style dishes or keto lasagna. It works well on pizza because you can use it just like you would Marinara Sauce, or simply bake with some chicken.

Finally, this sugar-free tomato sauce is great for meal prep and batch cooking. It's easy to portion it up and freeze it so you've got a tasty sauce ready for future meals.

Step-by-step

  1. Dice the onion. Slice the celery stalks and garlic. Pour the olive oil in a saucepan and add onion. Fry for 3 to 5 minutes, until lightly browned and fragrant. You can fry it longer for more caramelized flavor. Add garlic and cook for another 30 seconds.

    Tomato & Celery Pasta Sauce (keto, low-carb, vegetarian)
  2. Finally add celery, tomatoes, salt and pepper. Optionally add 1 tablespoon of Worcestershire sauce. Cover with a lid and reduce the heat to low-medium. Simmer until the celery is tender, for 20 to 30 minutes.

    Tomato & Celery Pasta Sauce (keto, low-carb, vegetarian)
  3. Remove the lid and give it a good stir. Set aside to cool down a little before using an immersion blender and processing until smooth.

    Tomato & Celery Pasta Sauce (keto, low-carb, vegetarian)
  4. Let it cool down completely before pouring in saleable jars. Store in the fridge in sealed jars for up to a week. For longer storage, transfer to an ice tray or small freezer-friendly containers and freeze for up to 6 months. When ready to use, just pop out a few cubes.

  5. Serve with zucchini noodles, palmini noodles or shirataki noodles and protein options of choice (chicken or any meatballs work best).

    Tomato & Celery Pasta Sauce (keto, low-carb, vegetarian)
Tomato & Celery Pasta Sauce

Recipe

Tomato & Celery Pasta Sauce

★★★★★4.6 (5 ratings)

This is the best tomato sauce and it's so versatile! Use just like pasta sauce, pizza sauce, with meatballs or ...

Hands on
10m
Overall
40m
Servings
8
3.1 g
Net carbs
1 g
Protein
7 g
Fat
84
kcal
PinRate

Ingredients makes about 4 cups, 960 ml

Instructions

  1. Dice the onion. Slice the celery stalks and garlic. Pour the olive oil in a saucepan and add onion. Fry for 3 to 5 minutes, until lightly browned and fragrant. You can fry it longer for more caramelized flavor. Add garlic and cook for another 30 seconds.

  2. Finally add celery, tomatoes, salt and pepper. Optionally add 1 tablespoon of Worcestershire sauce. Cover with a lid and reduce the heat to low-medium. Simmer until the celery is tender, for 20 to 30 minutes.

  3. Remove the lid and give it a good stir. Set aside to cool down a little before using an immersion blender and processing until smooth.

  4. Let it cool down completely before pouring in saleable jars. Store in the fridge in sealed jars for up to a week. For longer storage, transfer to an ice tray or small freezer-friendly containers and freeze for up to 6 months. When ready to use, just pop out a few cubes.

  5. Serve with zucchini noodles, palmini noodles or shirataki noodles and protein options of choice (chicken or any meatballs work best).

Nutrition per serving, about ½ cup, 120 ml/ 4 fl oz

Carbs 16%Protein 5%Fat 79% of calories

Net carbs
3.1 g
Total carbs
5.2 g
Fiber
2.1 g
Sugars
3.2 g
Protein
1 g
Fat
7 g
Saturated fat
1 g
Calories
84 kcal
Sodium
327 mg · 14.2% RDA
Magnesium
12 mg · 3.06% RDA
Potassium
242 mg · 12.1% EMR
Nutrition by ingredient
Per about 1/2 cup, 120 ml/ 4 fl ozNet carbsProteinFatkcal
Tomatoes, canned (unsweetened)0.9 g0.4 g0.1 g9
Celery stalk, fresh0.5 g0.3 g0.1 g6
Onion, brown (yellow), raw1.2 g0.2 g0 g7
Garlic, fresh0.5 g0.1 g0 g2
Olive oil, extra virgin0 g0 g6.8 g60
Salt, sea salt0 g0 g0 g0
Pepper, black, spices0.1 g0 g0 g0
Total3.1 g1 g7 g84

Serving size about 1/2 cup, 120 ml/ 4 fl oz

  • Gluten free
  • Dairy free
  • Egg free
  • Nut free
  • Pork free
  • Avocado free
  • Coconut free
  • Fish free
  • Shellfish free
  • Beef free
  • Pescatarian
  • Vegetarian
  • Vegan

Comments & ratings (2)

4.65 ratings
  • 5 ★3
  • 4 ★2
  • 3 ★0
  • 2 ★0
  • 1 ★0

Leave a comment

Made this? Rate it

Comments appear after we've read them.

Comment received

  1. Will

    Do I have to purée? I prefer chunks of celery.
    Also I only have diced tomatoes. Can I use a can of those instead?

    1. Martina @ KetoDietAuthor

      Not at all! You could use something like potato masher if you prefer yours chunky 😊 Diced tomatoes are fine, they are soft anyway.

My go-to recipes for stress-free meal prep

⭐️ FREE EMAIL BONUS ⭐️
Easy, filling, high-protein meals I make on repeat to save time & keep it simple.