I use Near East Taboule or Couscous a lot. When I cook out on the grill, I make sure to cook up extra meat & veggies, then refrigerate. Lots of cool meals. Cook early in the day. If you (or a loved one) insist on hot meals at dinner, either get a divorce, or cook early in the morning and nuke in the evening.
Yesterday, though, was a delivered pizza, and it was a lifesaver, eating it in front of the air conditioner. Delivered food, or something carried home after work, can be a life-saver.
But my truly biggest hint is when you fire up the grill, think in terms of several meals, not just one. Grilled veggies on greens, or on a quick cooking pasta (think angel hair or small pastas that don't take a lot of boiling water). Meats, fish, shellfish, in and on salads. Tasty.