Bring a medium saucepan of salted water to the boil. Peel the potato and cut into 1cm chunks. Chop the broccoli into small florets and roughly chop the stalk. Pick and finely chop the rosemary leaves. Finely chop the garlic (or use a garlic press). Slice the lemon in half.

Add the potato to the pan of boiling water and cook for 10-15 minutes, or until soft when pierced with a knife. Drain very well and return to the saucepan. Add the salt and 1/2 the butter to the potato. Mash with a potato masher or fork until as smooth as possible. Stir through the grated Parmesan cheese and cover with a lid to keep warm. TIP: For the low-calorie option, don't stir through the Parmesan.

While the potato is cooking, heat a medium frying pan over a medium-high heat. Add the slivered almonds and toast, tossing, for 3-4 minutes or until golden. Transfer to a small bowl. Return the frying pan to a medium-high heat with a drizzle of olive oil. Add the broccoli and a splash of water and cook for 5-6 minutes or until tender. Season with salt and pepper and transfer to a plate. Cover to keep warm.

Return the frying pan to a high heat. Slice each beef rump in half to get 1 steak per person. Drizzle the steaks with olive oil and season with a pinch of salt and pepper. Add the beef rump to the pan and cook for 2-3 minutes on each side (depending on thickness), or until cooked to your liking. Transfer to a plate and rest for 5 minutes. TIP: This will give you a medium steak but cook for a little less if you like it rare, or a little longer for well done.

Return the pan to a medium heat with the remaining butter and the garlic and rosemary. Heat for 1 minute or until the butter has lightly browned and the rosemary is fragrant. TIP: Watch to make sure the butter doesn't burn. Add the resting juices from the steak and a squeeze of lemon juice. Stir to combine and cook for 1 minute or until thickened. Remove the pan from the heat. TIP: Seasoning is key in this sauce, so taste and add a pinch of salt, pepper or another squeeze of lemon juice if you like

Thickly slice the steak. Divide the steak, Parmesan mash and broccoli between plates. Spoon over the rosemary garlic butter sauce and sprinkle with the slivered almonds. TIP: For the low-calorie option, serve without the slivered amonds.