My family always does best with the basics. I think things get unhealthy when you go out or get too complicated.
Lean meat from Whole Foods store...... hamburgers. With healthy beans, salad, vegie.
Baked or barbecued chicken, breasts (I cut off all fat and de-vein before cooking)......vegies, salad, nice bread with butter
chicken salad with leftovers. EAsy on mayo.
Spagetti is healthy if you use the lean meat I suggested. You can use spagetti squash instead of pasta too. Again, a salad, vegie
I'm trying to say, just make a basic healthy meat/fish/poultry. Add a vegie without adding sauces or cheeses (a little healthy butter or margarine if your family likes), a salad easy on the dressing.
We make chicken fajitas with chicken breast. grilled onion, guacamole and if the kids want sauce or a little graded cheese.
For us it is about avoiding high fat and sauces. Lots of fruit and vegies.