Hamburger helper, Chicken Helper, Tuna helper....
There's a number of nice Chicken meals where you add in some boneless/skinless chicken breasts to the meal and you are ready to go. Our kids will eat all of them (though they prefer solid albacore packed in water with the tuna helper meals).
Others - quick and dirty spagetti (can of sauce, can of diced tomatoes, burger, some seasoning and noodles).
Hamburger pot pie - 2 cans of sauce, burger, spices, green beans and mashed potatos over the top - finosh by broiling in oven until potatos start to turn brown.
Mac & Cheese with burger or canned chicken and veggies.
Get some refridge biscuts; make a sauce, add some meat and maybe a veggie, put biscuts on top and bake.
Make your own pizza - get the boboli crusts and just have fun.
Lots of options!
Even fancy meals can be easily prepared. Our kids like tenderloin pork roast - one hour in the oven in a sauce, then rice or potatoes on the side and maybe a veggie or salad.
Broil a flank steak with side dishes.
Fajuitas (see flank steak above, along with chicken breasts).
Use the bar-b-que available at the pools - burgers and dogs along with baked beans or potatoe salad - or, steaks and shrimp (yum, yum).