Pre heat grill and turn to low before placing food on it.

Peel and cut up the squash and zuchinni either in sticks or slices. I like to do sticks as it seems to hold up better. Cut up the onion in slices.

Tear out two big sheets of aluminum foil and lay over eachother and roll sides to make somewhat of a lip. Spray foil with cooking spray.

Place the squash, zuchinni and onion on the foil in a single layer. Onions may lay on top of squash and zuchinni. Take out and place on the grill and then drizzle a little olive oil over all and then sprinkle with the garlic salt, onion powder and italian seasoning.

Cook on each side about 5 minutes or untill tender.

Serve when done and enjoy:)

You can also add tomatoes or other veggies of your likeing to this. It has many variations:)