Start by washing and drying all the vegetables thoroughly. I like cutting them into similar-sized pieces so everything roasts evenly. This step ensures no vegetable is overcooked or underdone.
Place all chopped vegetables into a large bowl. Add olive oil, garlic, oregano, thyme, salt, and black pepper. I always toss with my hands to coat every piece evenly.
Preheat the oven to 425°F (220°C). Spread the vegetables in a single layer on a parchment-lined baking sheet. Avoid overcrowding, as this helps them roast instead of steam.
Roast the vegetables for about 35–40 minutes, stirring once halfway through. I look for lightly charred edges and fork-tender centers before removing them from the oven.
Once roasted, sprinkle crumbled feta and fresh parsley over the hot vegetables. I sometimes finish with a squeeze of lemon juice for extra brightness before serving.