In the summer almost everything goes on the grill; vegetables, chicken, roast beef, fish.  One of my favorites is marinated asparagus with bacon wrapped scallops and clams.  I use a quick marinade of lite soy sauce, sesame oil, olive oil, garlic and honey for the aspargus. It somes out really good.  The scallops and clams cook great on the grill.  Especially the clams they get a nice smokey taste to them.