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Roasted Vegetables Recipe

Roasted Vegetables Recipe: Roast colorful veggies with olive oil, herbs, lemon, and optional Parmesan for an easy, flavorful side.

Ingredients

• 1 medium red bell pepper (about 5 oz / 140 g), seeded and cut into 1-inch (2.5 cm) wide strips
• 1 medium yellow bell pepper (about 5 oz / 140 g), seeded and cut into 1-inch (2.5 cm) wide strips
• 1 medium red onion (about 6 oz / 170 g), peeled and cut into 1-inch (2.5 cm) wedges
• 1 medium zucchini (about 7 oz / 200 g), ends trimmed and cut into 1/2-inch (1.25 cm) thick half-moons
• 1 medium yellow squash (about 7 oz / 200 g), ends trimmed and cut into 1/2-inch (1.25 cm) thick half-moons
• 1 medium carrot (about 3 oz / 85 g), peeled and cut on the bias into 1/3-inch (8 mm) thick slices
• 1 small head broccoli (about 8 oz / 225 g), cut into 1 1/2-inch (4 cm) florets, stems peeled and sliced 1/3-inch (8 mm) thick
• 1 small head cauliflower (about 8 oz / 225 g), cut into 1 1/2-inch (4 cm) florets
• 3 tablespoons (45 ml) extra-virgin olive oil
• 1 teaspoon fine sea salt (about 6 g)
• 1/2 teaspoon freshly ground black pepper
• 1 teaspoon dried Italian seasoning or dried mixed herbs
• 1/2 teaspoon garlic powder
• 3 large cloves garlic (about 12 g), finely minced
• 1 teaspoon fresh thyme leaves, stripped from stems (optional)
• 1 teaspoon freshly grated lemon zest (from about 1/2 medium lemon, optional)
• 1 tablespoon freshly squeezed lemon juice (optional, for serving)
• 2 tablespoons freshly grated Parmesan cheese (about 10 g, optional, for serving)
• 1 tablespoon finely chopped fresh parsley (about 2 g, optional, for garnish)

Instructions

Step 1: Preheat and prep the pan

Preheat your oven to 425°F (220°C) and position a rack in the center. Line a large rectangular rimmed baking sheet (about 18 x 13 inches / 46 x 33 cm) with a single sheet of parchment paper so it sits smooth and taut; this single rectangular geometry will be important for the final presentation. Keep the empty baking sheet and a roll of parchment nearby on the Calacatta-inspired quartz surface so everything is ready to move when the vegetables are seasoned.

Step 2: Trim and slice the peppers and onion

Remove stems, seeds, and membranes from the red and yellow bell peppers, then cut each into 1-inch wide strips and shorten to 2–3 inch lengths so they roast evenly. Peel the red onion, trim the root slightly while keeping layers attached, and slice into 1-inch wedges, gently teasing the layers apart with your fingers so they fan open while roasting.

Step 3: Slice the summer squash and carrot

Trim the zucchini and yellow squash ends and slice into 1/2-inch thick rounds, halving larger rounds into half-moons to match sizes across vegetables. Peel the carrot and slice on the bias into about 1/3-inch pieces so the carrot cooks at the same rate as the softer squash and peppers.

Step 4: Cut the florets and assemble the prepped vegetables

Cut broccoli and cauliflower into 1 1/2-inch florets; peel any thick broccoli stems and slice into 1/3-inch rounds so they roast tender. Gather all prepared pieces — bell peppers, onion wedges, zucchini and yellow squash half-moons, carrot bias slices, broccoli rounds and cauliflower florets — into a single large mixing bowl so they’re ready for seasoning.

Step 5: Make the seasoned oil and toss

In a small bowl whisk together extra-virgin olive oil, fine sea salt, freshly ground black pepper, dried Italian seasoning (or mixed herbs), and garlic powder until homogenous. Pour the seasoned oil over the vegetables in the large matte charcoal mixing bowl, add the finely minced garlic cloves and optional fresh thyme, then toss thoroughly with a spoon or by hand (no hands shown) until every piece gleams with an even, thin film of oil and visible flecks of herbs and garlic. Scrape the bottom of the bowl so no spices are left behind.

Step 6: Spread into a single layer on the baking sheet and start roasting

Transfer the evenly coated vegetables to the parchment-lined rectangular baking sheet, arranging them into a single, non-overcrowded layer with small gaps between pieces so air circulates and edges can brown. Slide the sheet onto its resting spot (no oven shown) and roast conceptually at 425°F for the first 15 minutes without stirring; during this period the undersides will begin to develop light browning and the onion layers will soften.

Step 7: Turn, finish roasting, and finish with acid and cheese

Remove the tray, use a spatula to turn and redistribute the pieces into another single layer, then continue roasting until the vegetables are fork-tender with caramelized, lightly charred edges (25–30 minutes total). Immediately after removing the hot sheet, sprinkle with freshly grated lemon zest and drizzle with a touch of lemon juice so the citrus brightens the roasted sugars, then, if using, finish with freshly grated Parmesan and a scattering of chopped parsley while everything is still hot so the cheese melts slightly and herbs cling. Taste and adjust salt and pepper to finish.

Step 8: Transfer to a warmed rectangular serving platter and serve

Transfer the hot roasted vegetables from the baking sheet into a warmed, shallow rectangular serving platter that mirrors the sheet’s geometry, arranging the pieces so caramelized edges and colorful contrasts are visible. Serve immediately while glossy from the finishing oil and lemon, with some Parmesan shavings and parsley left on top for texture and color.

Notes

• Cut vegetables to uniform sizes so they roast evenly.
• Don’t overcrowd the pan; use two sheet pans if needed.
• Add Parmesan or lemon juice just after roasting for the best flavor.
• Store in an airtight container and reheat on a baking sheet to restore crispness.
• Substitute oils, herbs, or vegetables seasonally to keep the recipe fresh.