Hoisin glazed meatloaf with cauliflower purée. Kids love it.

I'd say ours is meatballs, I make them homemade in homemade sauce. Everyone loves them and eats them for days. It's the one leftover I feel they will eat all week. Meatball sandwiches, pizza, calzones

Second place would be steak or salmon on the grill and salad