Marinated Grilled Summer Squash and Zucchini

We have an abundance of zucchini and summer squash in our garden most years, so we're always on the lookout for new ways to prepare it.  My husband read about this marinade for grilling in a travel magazine and gave it a try.  It was really delicious . . . and easy!

Mix together equal parts of lemon juice OR balsamic vinegar and olive oil.  Add crushed or minced garlic, garlic salt and pepper in a large ziplock bag. Cut squash the long way.   Put vegetables in bag (you can see we added mushrooms, too).  Marinade for a few hours.  Grill.