Spaghetti with red chunky tomato sauce of roasted cauliflower crumbs and walnuts, scattered with parsley
Italian-inspired Recipe

Cauliflower and walnut bolognese with spaghetti

Cauliflower is finely chopped and oven-roasted; nuts are added later. The crumbs are then stirred into a quick tomato sauce.

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Total time 45 min
Calories 509 kcal
Servings 3 servings
Difficulty Easy
By the Published Editorially approved

Why this recipe works

A crumbly vegetable and nut sauce for pasta

This dish is a vegan interpretation of bolognese. Small roasted cauliflower pieces and walnuts give the sauce texture. The tomatoes reduce while the vegetables roast. The quantity makes three main meals without an extra cheese topping.

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Recipe

Cauliflower and walnut bolognese with spaghetti

Roasted cauliflower and walnut crumbs in a rich tomato sauce, served with spaghetti and parsley.

Ingredients

3 servings

Method

  1. 1

    Prepare ingredients

    Preheat oven to 210 °C conventional top and bottom heat. Finely chop cauliflower with a knife or in batches in a processor to about 3 to 5 mm pieces; do not puree. Chop walnuts similarly finely. Finely dice onion and garlic and roughly break up tomatoes in their juice.

  2. 2

    Roast cauliflower and nuts

    Mix cauliflower with half the oil and spread thinly on a tray lined with baking paper. Roast on the middle shelf for about 15 minutes, turning once. Mix in walnuts and roast for another 5 minutes. Crumbs should be lightly browned; remove nuts before they burn.

  3. 3

    Cook tomato sauce

    Meanwhile heat remaining oil in a large pan. Soften onion for 3 minutes over medium heat and briefly add garlic. Add tomatoes with juice, half the salt and pepper and reduce gently over low heat for about 12 minutes.

  4. 4

    Cook spaghetti alongside

    Bring water to a boil with remaining salt. Cook spaghetti according to the package for about 9 minutes until al dente. Reserve a little cooking water before draining, then drain pasta.

  5. 5

    Finish sauce

    Stir roasted cauliflower and walnut crumbs into tomato sauce and simmer gently for about 3 minutes. Add a little reserved pasta water if needed. Chop parsley. Serve spaghetti with the chunky sauce and scatter with parsley immediately.

Kitchen know-how

Tips for Cauliflower and walnut bolognese with spaghetti

Do not puree cauliflower

Short pulses or a sharp knife produce small pieces. A wet puree roasts less well and loses the desired crumbly texture.

Add nuts to the tray later

Walnuts brown faster than cauliflower. They are added near the end and need watching while roasting.

Variations

How to adapt this recipe

Replace walnuts with the same quantity of shelled sunflower seeds and likewise add near the end of roasting. Flavour and nutritional values change.

Replace white spaghetti with the same dry amount of egg-free wholegrain spaghetti. Follow package cooking time; fibre and other nutritional values change.

Nutrition per serving

509kcal
56.0 gCarbohydrates
16.5 gProtein
22.6 gFat

Values are estimates per serving and may vary depending on the ingredients, brands, portion size and preparation method used.

Frequently asked questions

FAQ about Cauliflower and walnut bolognese with spaghetti

No. Here the name describes a vegan variation with a crumbly roasted cauliflower and walnut sauce. It is not a traditional meat ragù.

The small chopped pieces are essential to the roasting time and sauce texture. Large florets need longer and produce a different dish.

No. Use dry plain kernels. Finely chop and briefly roast them so they retain some bite in the tomato sauce.

The roasted vegetable and nut crumbs absorb liquid. A little reserved cooking water loosens the sauce without stirring in extra oil.