Seared Steak & Mustardy Greens
with Garlic-Peppercorn Butter & Mash
- Milk
- Sulphites
Long after you finish this humble dinner of steak and greens, you're going to remember the way it was transformed by the simple addition of tangy wholegrain mustard cooked into the veggies. It's an easy trick that gives this classic dish a new lease of life. *Keep an eye out... Due to recent sourcing challenges, we’ve replaced leek with courgette, which may be a little different to what’s pictured. Don’t worry, your recipe will be just as delicious!*
Ingredients
2
potato
½ sachet
black peppercorns
1 clove
garlic
1 bag
green beans
½ packet
wholegrain mustard
(Contains: Sulphites)
1
leek
1 packet
Beef Rump
Not included in your delivery
olive oil
30 g
butter (for the sauce)
(Contains: Milk)
40 g
butter (for the mash)
(Contains: Milk)
2.5 tbs
milk
(Contains: Milk)
Nutrition
You will need
Cooking Steps
Bring the butter(for the sauce) to room temperature. Bring a medium saucepan of lightly salted water to the boil. Peel the potato and cut into large chunks. Cook the potato in the boiling water until easily pierced with a fork, 10-15 minutes. Drain and return the potato to the saucepan. Add the butter(for the mash), milk and a pinch of salt, then mash until smooth. Cover to keep warm.
While the potato is cooking, lightly crush the black peppercorns (see ingredients) with a mortar and pestle or in their sachet using a rolling pin. Finely chop the garlic. In a large frying pan, heat a drizzle of olive oil over a medium-high heat. Cook the garlic until fragrant, 1 minute. Transfer the garlic oil to a medium bowl, then add the crushed peppercorns and butter (for the sauce). Season with salt and mash with a fork to combine. Set aside.
Trim the green beans. Thinly slice the courgette into half-moons. Season the beef rump on both sides.
Wipe out the frying pan, then return to a high heat with a drizzle of olive oil. When the oil is hot, cook the beef for 2-3 minutes on each side (depending on thickness), or until cooked to your liking. Transfer to a plate and top with the garlic-peppercorn butter. Set aside to rest.
While the steak is resting, wipe out the frying pan and return to a medium-high heat. Cook the green beans and courgette, tossing, until softened, 4-5 minutes. Add the wholegrain mustard (see ingredients) and toss to combine. Season to taste.
TIP: Add a little less mustard if you're not a fan!
Slice the steak. Divide the mash, mustardy greens and steak between plates. Spoon over any steak resting juices and melted garlic-peppercorn butter to serve.
Customer reviews
Review summary
Updated on Feb 2026- Flavour: Many enjoyed the mustardy greens and garlic-peppercorn butter, though some found the mustard overpowering.
- Ease of prep: Several customers found this quick and easy to prepare, with clear instructions for cooking the steak.
- Suggestions: Consider tenderising the steak before cooking; some found it tough. Cook the beans longer than suggested for better texture.
- Next-day meals: Leftovers kept well; some customers split the meal across two nights successfully.
- Portions: Some felt the meal needed more vegetables, particularly noting small leeks that were closer to spring onion size.
