1-First Step: Preheat the oven and get the tray ready Set your oven to 425°F. Line a baking tray with parchment paper so cleanup is easy and the vegetables do not stick. This high heat is what gives roasted spring vegetables those golden edges and rich flavor. While the oven heats, wash and prep all the vegetables. Quarter the new potatoes, break the cauliflower into florets, cut the leeks into half moons, trim the asparagus, and slice the lemon thinly. Having everything ready before roasting makes the process smooth and quick.

2-Second Step: Add the heartier vegetables first Place the quartered potatoes, cauliflower florets, and chopped leeks on the prepared tray. Try to spread them out in a single layer so the hot air can move around each piece. If the tray looks too crowded, use a second sheet pan so the vegetables roast instead of steam. Drizzle the vegetables with 1 to 2 tablespoons of avocado oil or olive oil. Sprinkle with sea salt and black pepper to taste. Toss everything well so each piece gets coated. This first coating gives the potatoes and cauliflower a chance to brown and caramelize.

3-Third Step: Roast the first round for 25 minutes Slide the tray into the oven and roast for 25 minutes. During this time, the potatoes will begin to soften, the cauliflower will start to brown, and the leeks will become tender and sweet. The kitchen will start smelling amazing, which is always a good sign. If you are roasting vegetables for a larger group, use two trays and rotate them halfway through for even browning. A quick turn of the pans also helps if your oven has hot spots. This is a small step, but it can make a big difference in the final texture.

4-Fourth Step: Add the asparagus and lemon After the first 25 minutes, remove the tray from the oven. Add the 1 pound of asparagus pieces and toss everything together so the asparagus picks up some of the oil and seasoning already on the pan. Then arrange the thin lemon slices over the top. The asparagus only needs a short roast, so adding it later keeps it crisp-tender and bright green. The lemon softens in the heat and gives the vegetables a fresh, lightly tangy finish. This is what keeps the dish from tasting heavy.

5-Final Step: Roast again, finish, and serve Return the tray to the oven and roast for another 10 minutes. The vegetables should be tender and lightly browned, with the asparagus still having a bit of bite. If you want a little more color, you can let them go for 1 to 2 extra minutes, but watch them closely. Once the vegetables are done, remove the tray from the oven and let everything rest for a minute or two. Add fresh herbs if you like, then serve hot. The finished dish pairs well with chicken, roasted meats, fish, or a simple grain bowl. If you want a full meal idea, try serving it with honey lemon chicken with green beans or alongside asian glazed salmon.