Breakfast

Steak and Eggs with Mushrooms and New Potatoes

Name: Steak and Eggs with Mushrooms and New Potatoes
Prep time: 25 min
Total time: 25 min
Yield: 1 serving
Ingredients: 150 g Rump steak, fat trimmed; 2 large, about 110 g Egg; 150 g New potatoes; 100 g Mushrooms; 100 g Tomato; 2 tsp (10 g) Olive oil; To taste Salt; To taste Black pepper

Seared rump steak sliced over roast new potatoes, with fried mushrooms, tomato and two fried eggs. 52 g of protein for 573 kcal.

Calories: 573kcal
Protein: 52g
Fat: 28g
Carbs: 28g

Per serving, makes 1. 25 minutes of work. Published 8 September 2026.

Allergens

Eggs

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

Rump steak, fat trimmed150 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.
Egg2 large, about 110 g
New potatoes150 g
Halved and roasted. Boiled ones are fine and save 5 g of oil. Raw weight, skins on.
Mushrooms100 g
Tomato100 g
Olive oil2 tsp (10 g)
SaltTo taste
Black pepperTo taste

Method

Heat the oven to 220°C. Toss the potatoes with half the oil and salt and roast for twenty minutes until crisp. Take the steak out of the fridge when the potatoes go in.
Get a heavy pan very hot. Salt the steak, rub it with a little of the remaining oil and sear for two minutes a side for medium-rare. Rest it on a board for five minutes.
In the same pan, fry the mushrooms and halved tomato in the rest of the oil over a high heat for four minutes, then push them to the side and fry the eggs until the whites are set.
Slice the steak against the grain and plate everything with the resting juices poured over.

Worth knowing

Rump trimmed of its fat is 125 kcal per 100 g and 22 g of protein, so a plate with steak, eggs and potatoes on it can still come in at 573. Ribeye at the same weight would add about 150.
Resting is not optional. Cut it straight from the pan and the juices end up on the board instead of the plate.

Other breakfast recipes that share ingredients with this one, or every breakfast 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.