Combine the seasonings, lemon juice, and oil in a small bowl. Light the coals in your grill.
Rinse the squash well and slice a bit off at the large bulbous end. Remove the seeds and pulp. Slice into 1/2 to 3/4 inch rounds (yes, leave the skin on, it’s tasty and nutritious!). Or slice in half vertically, scoop out the pulp and seeds and proceed as directed, allowing longer grill time.
Rub both sides of the squash slices with the marinade. Let the squash sit at room temperature while the grill heats up.
Grill for about 8-10 minutes on each side, or until browned and softened. Test with a fork.