I'm not a nutritionist and am not qualified to give specifics but my general rules-of-thumb for diet start at the grocery store! For you to eat healthy, you've got to shop well. This will help you to avoid going out to restaurants as much as possible!

1. Buy fresh fruits and vegetables for a three-day period so that you don't waste and so that you get the freshest produce (the darker in color the better, e.g., sweet potatoes are better than white). Fresh berries, dark green lettuce such as romaine, leaf, or spinach for salads SHOULD BE STAPLES! Microwavable prewashed spinach and green beans and other vegetables are great if you can offord them. Keep in mind they are cheaper than eating out!
2. Shop for produce first, your lean protein and eggs next, and then your dairy and whole grains. Work your way around the circumference of your grocery store avoiding the center isles.
3. After getting your cold/fresh items, head for your health food section. Make friends with the health food department manager. He/she may put things on sale just for you if she's smart! My favorite is Gail Levenstiem at the Embry Hills Kroger!
4. Some things to splurge on might be a little dark chocolate, nuts, seltzer water, club soda, and not more than one or two whole grain crunchy snacks! Remember you've got those fruits and vegetables to eat!
5. Focus on what you can and should eat instead of what you can't. Healthy food can taste good to you and your children.
6. Change habits one at a time e.g., cut out alcohol during the week and replace with club soda and a splash of cranberry with a twist of lime. This is delicious!