I like easy too.. but I try for a little more variety without too much cooking time.
I use leftovers from previous nights that I have cooked -- soups, stews, etc.
Sandwiches and wraps-- deli sliced chicken breast is great (my kids love it), egg salad, tuna salad, chicken salad, peanut butter, grilled cheese. The nice thing about egg salad and such is that you can make it the night before and pull it out, throw on some bread when it's lunch time.
Burritos are also SUPER easy - can of refried beans heated up, add some grated Colby jack on a tortilla - yum! If you want some meat ground turkey with some taco seasoning browned in a pan makes a delicious taco/burrito meat.
Quesadillas also super easy -- I just put cheese between two tortillas and brown either side like a grilled cheese sandwich. You can add meat if you have something leftover from a dinner. Steak, pork, chicken.. anything works.
Salads are a big hit here... I buy the mixed salad bag. Add some left over grilled chicken or hard boiled eggs.
Yogurt, fruit salad/fresh fruit - (grapes, apples, bananas), string cheese, cut up cheese cubes, fresh veggies like peeled carrots, baby carrots, cucumber slices, celery sticks. You can offer dipping sauces or do something like peanut butter on the celery sticks, hummus with the cucumber, etc. I do these as sides with other suggestions.
I also use canned veggies and fruits - like asparagus, mandarin oranges, green beans as easy sides.
Frozen veggies steam in the microwave ALSO open up a ton of options.