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How to Grill Gem Squash

How to grill gem squash on the BBQ. Cook at 180-200°C (350-400°F) for 15-20 minutes (indirect heat). Step-by-step guide with temperatures and tips for perfect results.

By Bill Ohaire | Published: April 2026 | Last Updated: April 2026

Colourful grilled vegetables on the barbecue

Photo by Askar Abayev on Pexels

Quick Answer

Grill gem squash at 180-200°C (350-400°F) for 15-20 minutes (indirect heat).

How to Grill Gem Squash

Gem squash needs a longer, gentler cook. Use indirect heat with the lid closed. The cavity makes a natural bowl — fill with butter, cheese, or a grain salad once cooked.

Temperature

180-200°C (350-400°F)

Cook Time

15-20 minutes (indirect heat)

Category

Grilled Vegetables

Step-by-Step Instructions

  1. Prep: Halve, scoop out seeds, brush with butter and season with salt, pepper, and nutmeg.
  2. Preheat: Get your BBQ to 180-200°C (350-400°F). Clean and oil the grate to prevent sticking.
  3. Grill: Cook for 15-20 minutes (indirect heat).
  4. Check doneness: Flesh is tender when pierced with a fork, edges caramelised.
  5. Serve: Serve immediately for the best texture and flavour.

Tips for Perfect Results

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Frequently Asked Questions

How long do you grill gem squash?

Grill gem squash at 180-200°C (350-400°F) for 15-20 minutes (indirect heat). Flesh is tender when pierced with a fork, edges caramelised.

What temperature for grilled gem squash?

Grill gem squash at 180-200°C (350-400°F). Preheat the grill and oil the grate before cooking.

Related BBQ Guides

All Cooking Times BBQ Vegetables Guide

Sources & References

1
America's Test Kitchen (YouTube)
Tested techniques for grilling vegetables to perfection.
Video
2
AmazingRibs.com
Vegetable grilling guides with temperature and timing charts.
Reference
3
Guga Foods (YouTube)
Creative grilled vegetable experiments and flavour combinations.
Video
4
How to BBQ Right (YouTube)
Malcom Reed's side dish and grilled vegetable recipes.
Video