We eat a lot of salad + protein meals in the summer. They are very easy - often with no cooking required - and can be customized to suit the picky preferences of each member of the family.
Here is a recent success (with my husband and me at least - the child doesn't care for seafood)
It's just a bed of greens with strips of crabmeat and shrimp, tomato, bacon (leftover from a breakfast probably), avocado and red bell pepper. I think I made a homemade dijon mustard vinaigrette too. The plate below is my husband's - I could eat, maybe, a 1/4 of this amount.