If there is one technique that separates good meal-preppers from great ones, it is the sheet pan roasted vegetable batch. Spend 40 minutes roasting three trays of vegetables on Sunday and you will have a versatile, flavourful side for every single meal of the week — grain bowls, wraps, alongside protein, stirred into eggs.
Choosing Your Vegetable Mix
Root vegetables (sweet potato, parsnip, carrots, beetroot) and robust brassicas (broccoli, cauliflower, Brussels sprouts) roast best. Water-heavy vegetables like courgette, cherry tomatoes, and bell peppers roast beautifully but faster. The key rule: do not mix dense and water-heavy vegetables on the same tray or the dense ones will steam rather than caramelise.
The Caramelisation Secret
Three rules for perfectly caramelised vegetables: (1) dry them completely before oiling — any moisture creates steam, (2) do not crowd the pan — vegetables touching will steam, and (3) use a high enough temperature — 210 °C minimum. Get these three things right and the vegetables will develop deep golden edges and intense sweetness through the Maillard reaction.
Flavour Variations for the Week
Batch-roast with just olive oil, salt, and pepper for maximum versatility. Then season individual portions differently: Italian herbs on Monday, harissa on Tuesday, balsamic glaze on Wednesday. One batch of neutral roasted vegetables becomes five different flavour profiles without any additional prep.