Dinner

Sirloin with Chimichurri and New Potatoes

Name: Sirloin with Chimichurri and New Potatoes
Prep time: 20 min
Total time: 20 min
Yield: 1 serving
Ingredients: 180 g Sirloin steak, fat trimmed; 200 g New potatoes; 100 g Green beans; 8 g Olive oil; A large handful, chopped fine Fresh parsley; 1 clove, about 3 g Garlic; 1 tbsp Red wine vinegar; A pinch Chilli flakes; A pinch Dried oregano; To taste Salt

Seared sirloin under a sharp parsley and vinegar sauce, with boiled new potatoes and green beans. 45 g of protein for 484 kcal.

Calories: 484kcal
Protein: 45g
Fat: 18g
Carbs: 36g

Per serving, makes 1. 20 minutes of work. Published 8 September 2026.

Allergens

Sulphites

Flags follow UK labelling rules and come from the ingredients as listed, not from any particular brand. Check the packet before cooking for somebody with an allergy.

Ingredients

Sirloin steak, fat trimmed180 g
Weighed raw. The same piece weighed after cooking has lost water, so the protein per gram is higher and the total would come out about a quarter over.
New potatoes200 g
Halved so they cook in the time the steak rests. Raw weight, skins on.
Green beans100 g
Olive oil8 g
All of it goes in the chimichurri. The pan gets nothing.
Fresh parsleyA large handful, chopped fine
Garlic1 clove, about 3 g
Red wine vinegar1 tbsp
Chilli flakesA pinch
Dried oreganoA pinch
SaltTo taste

Method

Put the potatoes on to boil in salted water. They need about fifteen minutes; add the beans for the last four.
Stir the parsley, crushed garlic, vinegar, oil, chilli flakes and oregano together with a pinch of salt and leave it to sit while you cook.
Pat the steak dry, salt it and lay it in a very hot dry pan. Three minutes a side for a 2 cm steak gives medium-rare. Rest it on a plate for five minutes.
Slice the steak across the grain, pour over the resting juices, spoon the chimichurri on top and serve with the potatoes and beans.

Worth knowing

The oil in the sauce is the only added fat, so 8 g is enough to carry the flavour and no more. Doubling it is another 70 kcal.
Chimichurri made an hour ahead is better than chimichurri made just now. The vinegar softens the garlic.

Other dinner recipes that share ingredients with this one, or every dinner between 450 and 600 calories a serving.

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Macros are calculated from the weights listed above using standard food composition values, and will shift with your own brands and measuring. Weigh what you can. This is a recipe, not dietary advice. The full health disclaimer is below.