In your baking dish, toss together the base veggies and aramatics: onion, carrot, celery, garlic, tomato paste, thyme, oregano, paprika, olive oil, salt + pepper.
Spread evenly and place uncovered in a 220 °C fan oven for 8–10 min, until the veggies start to sizzle and caramelise around the edges.
→ This step mimics stovetop browning and builds that rich, sweet base.