A pumpkin side can arrive as slim, browned slices or generous wedges with soft centres. Choose the cut before lighting the barbecue: the two shapes need different cooking plans. This guide gives you a practical way to match the heat to the piece, then build a shared platter around it.
Decide between slices and wedges
For a quick side, use evenly cut slices about 7 mm thick. Weber's vegetable grilling chart gives these a reference of 10–12 minutes over direct medium heat at 200–230°C (392–446°F).
For substantial wedges, use the chart's 4 cm pieces as the reference: allow roughly 30–45 minutes with indirect heat at 190–230°C (374–446°F). These are planning ranges, not promises. Check tenderness, and allow extra time when needed. Do not use the short timing for thin slices on a thick wedge.
Choose an edible cooking pumpkin. Ask the seller for a variety suited to roasting if you are unsure. A prepared section can be more manageable than a large whole pumpkin. Remove seeds and loose fibres, and use a stable cutting board; do not force a knife through a pumpkin that is rolling or too hard to control. Ready-cut cooking pumpkin is a useful alternative.
Make the batch consistent
Arrange the pieces on a tray before seasoning. Compare their thickest parts, not just their length. Keep noticeably thinner pieces together so you can remove them earlier instead of waiting for the largest piece.
Brush the flesh lightly with olive oil and season with salt and pepper. For a first batch, keep the seasoning simple: you will be able to judge the pumpkin itself before deciding whether it needs a dressing. Have a clean serving platter and a broad spatula ready.
Put the pumpkin in the right place
Preheat and arrange your barbecue according to its manufacturer's instructions. Direct cooking puts the food above the active heat source. For indirect cooking on a suitable gas barbecue, place the wedges above an unlit burner, with heat supplied beside them; use your model's recommended arrangement. Close the lid for roasting.
Leave space to lift each piece without catching its neighbour. For thin slices, inspect the underside during cooking and turn with a spatula once it has browned. For wedges, check the centre of the thickest piece with a skewer or small knife. You are looking for flesh that yields comfortably, rather than judging readiness from dark edges alone.
If the outside is colouring quickly while the centre is still firm, move the piece away from direct heat and let it finish with the lid closed. If a slice becomes too soft to lift with tongs, support it from underneath. A broken piece can still join the platter; it does not need to stay on the grill to look more presentable.
Build a platter, then dress it
Spread the cooked pumpkin out instead of stacking it. For a savoury finish, try a little lemon juice, olive oil and chopped parsley. Taste one piece before dressing the whole platter. Put any extra dressing in a small bowl so guests can choose how much to add.
Pair it with the grilled onions or portobello mushrooms in our linked guides. Add grilled bread for anyone who wants to gather the softer pumpkin and dressing onto toast. Prepare those accompaniments as separate batches rather than assuming they share the pumpkin's timing.
Keep a useful note for next time
Record the pumpkin variety if known, the cut thickness, the heat setting, and when the thickest piece became tender. Add one short observation, such as “thin end ready first” or “needed longer off the direct heat.” That note is more useful for repeating your own result than an exact minute count borrowed from a different grill.
Sources & further reading
- https://content-images.weber.com/downloads/Grill-Skill-vegetable-and-plant-based-bbq-guide.pdf
- https://contact-emea.weber.com/hc/en-us/articles/39518225669789-Direct-and-Indirect-Cooking-on-a-Gas-Barbecue
- https://bbqstories.com/originals/how-to-grill-onions
- https://bbqstories.com/originals/how-to-grill-portobello-mushrooms
- https://bbqstories.com/originals/how-to-grill-bread
Prepared with AI assistance.