Portobello Mushroom and Asparagus Rigatoni With Lemon and Butter Beans

Serves: 4
Takes: 20 mins

Can you ever really beat a good mushroom pasta - yes, you can with this planet friendly take on a creamy sauce using rice milk.

When To Eat

I recommend eating this dish from May to September.


Each of our recipes comes with carbon emissions numbers for the base ingredients. If you’re unsure why this is the case, checkout out the about page to find out more.

Name Amount KG CO2e
Plain Flour 2 Tablespoon 0.01
Rice Milk 500 ml 0.5
Olive Oil 4 Tablespoon 0.28
Portobello Mushroom 300 g 0.08
Cooked Butter Beans 200 g 0.08
Onion 1 Medium 0.02
Garlic 1 Clove 0
Nutritional Yeast 1 Tablespoon 0
Asparagus 150 g 0.12
Rigatoni 300 g 0.48
Parsley 30 g 0.02
Lemon 1 Lemon 0.039

This meal is around 85% less polluting than the average UK meal.

  • Eating this recipe will save around 2.51 kg CO2e per person.
  • That's equivalent to the emissions produced driving 20.71km in a modern car.


  • Bring a deep pan of salter water to the boil, tip in the pasta, reduce to a simmer and cook for 10 - 12 minutes or until the pasta is aldente. Drain and reserve the pasta in the pan with the lid on.
  • Finely chop the garlic and onion. Heat 2 tablespoons of the olive oil in a medium pan over a medium-high heat. Tip in the garlic and onions and fry for 3 - 4 minutes until the onions are soft and see-through. Halve and thinly slice the portobello mushrooms and tip into the pan. Cook the mushrooms until they are wilted and dark, about 4 - 5 minutes. Add the flour and nutritional yeast to the pan and stir well to coat the vegetables in the flour, cook for a further 2 minutes.
  • Pour in the rice milk and stir the pan ingredients, being sure to remove any debris from the bottom of the pan. Bring the rice milk to the boil and then turn the pan down to a simmer and cook until the sauce has thickened. Zest and juice the lemon. Chop the parsley and tip it into the pan along with half the juice of the lemon and cooked butter beans. Season the sauce to taste and lower the heat of the pan to just enough to keep the sauce warm.
  • Heat the remaining olive oil in a small frying pan on a high heat and toss in the asparagus spears. Fry the spears for about 4 - 5 minutes until they are soft and have an even colour on the outside.
  • Mix the sauce into the pasta and plate on individual bowls. Top with the fried asparagus and the lemon zest. Drizzle the remaining lemon juice over the dish to taste.
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