Anything you can make into a salad for yourself and keep regular for the kids, also utilizing a wok for fast cooking veggies with a small amount of oil. Modify CHO choices for you by keeping individual servings stored or frozen.
ie. You make burgers for kids, cook a morning star burger for yourself and either wrap in a delicious looking leaf of curly lettuce or low carb flat bread, no mayo but use mustard and dill pickle relish.

I have this for lunch just about every day and never grow tired of it:

Mexican Crockpot Soup

Ingredients:
1 Tbsp olive oil
2 lbs boneless chicken breasts (I used three)
1 ½ cups chopped red onion
2 chopped red bell peppers
chicken broth (amount depends on how soupy you like it)
¼ cup chopped cilantro
1 Tbsp Cumin
2 Tbsp chopped chipotle chile in adobo (more or less to taste)
6 cloves of garlic, roughly chopped
2 (28oz) fire roasted tomatoes
1 (4 oz) chopped green chiles, undrained
2 zucchini, chopped
Salt and pepper

Instructions
Heat a large skillet and brown the chicken in the olive oil.
Add everything except the cilantro in the crockpot and stir it up
Cook on low for 4 hours. Shred chicken and zucchini and cook on low for another hour.

I'm not low carb, but I have to balance my needs against the needs of a growing boy (bottomless pit) and a spouse who needs to eat 50% more calories than I do (minimum) and a ton more protein. The easiest thing I've found, is I will drastically reduce or drop something from the dinner menu for my own plate. If we are having spaghetti with meat sauce with a salad, I can put the meat sauce on my salad (similar to a chili salad). In the winter, I might have some sweet potato with green beans and skip the accompanying meat. However, since this is Recipe Exchange, I offer:
Three meal chicken (get a big chicken if you have 3 hungry people
Meal 1: Simple Roast Chicken with seasonal vegetables
Meal 2: BBQ chicken sliders: cooked chicken, bbq sauce, lettuce or bread (Eastern Carolina sauce ingredients: 1 gallon cider vinegar, 1 1/3 cup crushed red pepper, 2 tablespoons black pepper, 1/4 cup salt)
Meal 3: Take that carcass and simmer it overnight in the crock pot for stock, use the stock (and any meat bits you may have missed) to make a soup. I like making egg drop soup since it is a different flavor entirely but you might want to make something more hearty or using vegetables on hand. http://www.gimmesomeoven.com/egg-drop-soup/