Preheat the grill to medium-high heat
Wash the squash and trim the ends
Slice the squash lengthwise or into thick rounds
Remove seeds if using large squash
Brush the squash with oil
Season with salt and pepper
Add optional seasonings like garlic powder, paprika, or herbs
Place the squash directly on the grill grates or use a grill basket
Grill for 3 to 5 minutes per side
Flip once grill marks form and the squash softens
Cook until tender but not mushy
Remove from the grill
Serve immediately