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–+ servings
Pasta with roasted tomato sauce in a bowl.
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5 from 1 vote

Freezer-Friendly Roasted Tomato Sauce

Rich, gluten-free roasted tomato sauce perfect for freezing. Ideal for batch cooking, pasta, and pizza. Easy, flavourful, and freezer-ready!
Prep Time15 minutes
Cook Time2 hours 30 minutes
Total Time2 hours 45 minutes
Course: Condiment
Cuisine: British
Servings: 8 servings
Calories: 77kcal
Author: Georgina Hartley

Ingredients

  • 1 kg tomatoes roughly chopped
  • 1 large onion peeled and diced
  • 2 red peppers diced
  • 2 carrots peeled and diced
  • 2 red peppers de-seeded and diced
  • 2 sticks celery diced
  • 4 garlic cloves peeled and crushed
  • 2 teaspoons fresh thyme leaves
  • 2 bay leaves
  • 2 tablespoons olive oil
  • ½ teaspoon sugar optional
Metric - US Customary

Instructions

  • Pre-heat the oven to 190°C / 170°C fan assisted /gas mark 5 / 375°F.
  • Place all the ingredients (except for the sugar) in a large casserole dish with a lid.
  • Mix everything together then put the lid on and cook in the oven for 2 hours, giving a stir halfway through.
  • After 2 hours remove the lid and let the vegetables roast for a final half hour.
  • Remove from the oven, leave to cool then blend until smooth.
  • Adjust the sauce for seasoning and check whether it needs the extra sugar. Regular supermarket tomatoes will need a little more sweetness.
  • Divide the sauce into 250g portions then store in the freezer until your dinner emergency.

Notes

  • Yield 1kg of tomato sauce.
  • 250g sauce is enough to serve 2 people. You will need 80g dry pasta per person for a basic Tomato Pasta dish.
  • This sauce can be used a base for a variety of dishes from bolognaise to risotto to pizza bases.
  • The best tomatoes and vegetables to make this sauce will be in season and local. Homegrown is the dream but check your farmers' market and then out of season choose organic vegetables which have travelled the least amount from your supermarket.
  • Supermarket tomatoes will probably need a little more sweetness, but always check for adding more sugar at the end whilst you are blending the sauce.
  • Use appropriate airtight containers for freezing. Store in 250g portions which is enough for 2 people. I like these Souper Cubes the best. The sauce can be frozen for up to 3 months.
Ingredient measurements: Please note when you see ‘grams’ listed as opposed to ‘millilitres,’ or any other term of measurement, that is not incorrect. I weigh all of my ingredients, including liquids, for accuracy.
US customary measurements: These US measurements for the ingredients provided are based on a conversion calculator. This recipe was tested with metric measurements and I recommend using a digital scale to weigh ingredients for the most accurate results. READ MORE >>> Why you should always weigh vs measuring with cups 
Nutrition information: Please note that the nutrition information provided below is an estimate based on an online nutrition calculator. It will vary based on the specific ingredients you use. Please seek a professional nutritionist’s advice for further clarification.
The nutrition serving is for 125g sauce.
 

Nutrition

Calories: 77kcal | Carbohydrates: 10g | Protein: 2g | Fat: 4g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Sodium: 20mg | Potassium: 440mg | Fiber: 3g | Sugar: 6g | Vitamin A: 4551IU | Vitamin C: 58mg | Calcium: 28mg | Iron: 1mg